California is known for its sunny beaches, bustling cities, and iconic landmarks such as the Golden Gate Bridge and Hollywood sign. However, the state is also home to a wealth of scientific discoveries and phenomena that are not as well-known. From ancient fossils to cutting-edge research, California has a lot to offer in the realm of science. In this list, we’ll explore ten of the most fascinating scientific things that you probably didn’t know about California. Get ready to be amazed by the natural wonders and innovative research that make this state such a unique and exciting place for science enthusiasts.
California is home to the tallest tree in the world, a coastal redwood named Hyperion that measures 379.7 feet (115.7 meters) in height. The state is also home to the largest (by volume) tree, named General Sherman in Sequoia National Park. General Sherman is 274.9 feet high and has a diameter at its base of 36 feet, giving it a circumference of 113 feet. General Sherman’s estimated volume is around 52,508 cubic feet (1,487 cubic meters), which would correspond to an estimated weight of around 2.7 million pounds.
The Salton Sea, a large inland lake in southern California, is actually an accidental body of water that was created by a flood in 1905 when Colorado River floodwater breached an irrigation canal being constructed in the Imperial Valley and flowed into the Salton Sink.
TheSan Andreas Fault, the state’s best-known and most dangerous fault that runs through the middle of California and to the coast, moves about 2 inches (5 centimeters) per year (or, so they say, the speed that a fingernail grows).
The state of California has more national parks than any other state in the US, with nine in total. Among them is one of the crown jewels of the National Park system: Yosemite National Park.
California is one of the only places in the world where you can find naturally occurring asphalt, at the La Brea Tar Pits in Los Angeles.
The oldest living organism on Earth, a bristlecone pine tree named Methuselah, can be found in the White Mountains of California and is over 4,800 years old.
TheMonterey Bay Aquarium in Monterey, California was the first aquarium to successfully keep a great white shark in captivity for more than 16 days. The first great white that the aquarium tried to display died after 11 days in 1984 because it would not eat.
The Joshua Tree, a type of yucca plant (NOT a tree) found in the Mojave Desert, is named after the biblical figure Joshua because of its outstretched branches that resemble a person reaching up to the sky in prayer.
The California grizzly bear, which appears on the state flag, went extinct in the early 1900s due to hunting and habitat loss. The last California grizzly was seen near Yosemite in 1924, going extinct after decades of hunting. Fossils of the California grizzly can be seen at the La Brea tar Pits.
The California Institute of Technology, also known as Caltech, is one of the world’s leading scientific research institutions and has produced 39 Nobel laureates, more than any other university in the world.
A Pacific White-Sided Dolphin swims alongside a boat off Newport Beach, California
For those who are fortunate enough to live near the coast of California, Dolphin sightings are a frequent delight. Dolphins are a diverse group of marine mammals found in all of the world’s oceans, but they are especially abundant in California. The California coast is home to numerous species of dolphins, each with their own unique characteristics and behaviors. An afternoon spent at the beach will very often result in a sighting of these magnificent and majestic animals frolicking in the waves.
For those who may not know, dolphins and porpoises are toothed whales. Both porpoises and dolphins are members of the same scientific order, Cetacea, which includes all whales, including the magnificent blues, grey whales and humpbacks that also ply the California coast.
The exact number of dolphins off the California coast is impossible to know since many species migrate and no authoritative study of their total numbers has ever been published. But one estimate of the dolphin population in Southern California suggests that well over half a million live between the frigid, rocky coastal waters of Monterey and San Diego. Scientists have documented 11 species of dolphins in California’s waters alone. We take a look at a few of those here.
One of the most common, and beautiful, dolphins found off the coast of California is the Pacific White-Sided Dolphin (Lagenorhyncus obliquidens). These dolphins are easily recognized by their distinctive markings, which include a white underbelly and gray and white stripes along the sides. White-Sided Dolphins can reach up to 400 pounds and can grow to 8 feet in length, with males typically being larger than females. They are also known for their energetic and playful behavior, often bow-riding the waves alongside boats and performing wonderful acrobatics in the air. Boaters and whale watchers can witness pods of these animals following their boat for half an hour or more, often swimming on their sides near the surface and gazing up with attentive eyes.
White-sided dolphins feed on a variety of prey, but mostly consume fish and squid. They are skilled hunters and have been known to work together in groups to corral and capture their meals.
Another species found off the California coast is the Common Dolphin (Delphinus delphis). These dolphins have a distinctive sleek, hydrodynamic shape, with a dark gray or black dorsal region and a light gray or white underbelly. Common Dolphins are also known for their high level of activity, often seen jumping and playing in the water. Common dolphins can travel 100 miles in a single day.
This species is one of the most well-known and widely distributed marine mammals, and is often associated with playful acrobatics and a high level of intelligence. California is home to several large “super pods” or “megapods” of Common Dolphins that are often seen by boaters or whale-watching tours. As the American Cetacean Society explains, common dolphins typically travel and hunt in large herds of hundreds or even thousands. One resident megapod frequently forages between Ventura and Dana Point.
A Pacific White-Sided Dolphin
Common dolphins have been the subject of numerous studies examining their cognitive abilities. They are known to have complex social relationships and to exhibit behaviors that suggest a high level of problem-solving ability and adaptability. In addition, they are capable of using tools, such as seaweed, to herd fish and protect themselves from predators. They also have excellent memories and are able to recognize individual dolphins and remember past experiences.
The Bottlenose Dolphin (Tursiops truncatus) is another species that can be found off the coast of California. This species is easily recognizable due to its large size and beak-like snout. Bottlenose Dolphins are known for their intelligence and playful nature, and are often (unfortunately) used in marine mammal shows and research programs.
Bottlenose dolphins have a complex mating system that involves a variety of behaviors, including courtship displays, vocalizations, and physical contact. Female Bottlenose dolphins give birth to a single calf every three to five years, and the calves are nursed by their mothers for up to a year. Male Bottlenose dolphins compete for access to females, and the strongest and most dominant males are the most successful at mating.
A lesser-known (and seen) species found in the waters of California is the Risso’s Dolphin (Grampus griseus). These dolphins are identified by their tall, curved, sickle-shaped dorsal fin located mid-way down their back. Often they also have distinctive scars and scratches, which are believed to be caused by “teeth raking” between other dolphins. They also frequently have circular markings, likely from encounters with squid or lampreys. Risso’s Dolphins are generally less active than the other species found in the area, and are often seen alone or in small groups.
Finally, the Dall’s Porpoise (Phocoenoides dalli) is another species that can be found in the waters off the California coast. These dolphins are identified by their short, stocky bodies and small triangular dorsal fins. Dall’s Porpoises are known for their speed and agility, and are often seen riding the bow waves of boats.
Few places on earth match the coast of California for the sheer number and variety of dolphins that swim in the cool, nutrient-rich waters that well up from the state’s deep canyons. So next time you’re near the coast, keep an eye out for these incredible creatures and enjoy the show!
The drive from Los Angeles north along Highway 395 towards Mammoth Lakes is one of the great road trips in all of California. The drive offers breathtaking views of the Sierra Nevada mountain range, the (much older) White Mountains, the vibrantly picturesque Owens Valley, and the Mojave Desert (which, let’s face it, is kinda boring, especially if you’ve done the drive as many times as I have). The highway winds its way through a diverse range of geological and historical features, making it an ideal destination for road trippers, history buffs, and outdoor enthusiasts alike.
One of the highway’s more magnificent sights is observable when making a left turn up Whitney Portal Road in Lone Pine. Just a few miles up, you will find the magnificent Alabama Hills, a range of hills located in the Owens Valley near the main entrance to Mount Whitney. The hills are known for their unique geological formations, including massive rounded boulders and natural arches, and their rich history and cultural significance.
Scene from Iron Man with Robert Downey Jr. The Alabama Hills stood in for Afghanistan.
The hills are world famous not just for their scenic beauty and appeal to photographers. They have also appeared in more than 700 movie and television productions, including some of the most famous and iconic Westerns ever made. The first film made there was the silent 1920 western “The Round Up,” starring Roscoe “Fatty” Arbuckle.
More recently, several major films made use of the Alabama Hills as exotic backdrops. In addition to Iron Man (2008), where Tony Stark crash-lands after escaping captivity, and Gladiator (2000), where the rugged landscape serves as part of the journey for Maximus, the Alabama Hills has also appeared in:
The Lone Ranger (2013) – The dramatic landscape contributes to the film’s adventurous, untamed feel.
Django Unchained (2012) – Here, the rocky outcrops stand in for the American West, giving a distinctive backdrop to Quentin Tarantino’s Western.
Tremors (1990) – The Hills’ remote, desolate look is a perfect setting for this cult classic monster movie.
Star Trek V: The Final Frontier (1989) – Alabama Hills doubles as alien terrain in this installment of the sci-fi series.
Geologically, the Alabama Hills are primarily made up of biotite monzogranite, an intrusive igneous rock, rather than metamorphic rock. This type of granite was formed from magma that cooled slowly beneath the Earth’s surface, allowing large crystals of quartz, feldspar, and biotite to develop. The landscape, featuring spherical, egg-shaped, teardrop forms, and natural arches, was sculpted over millions of years through a combination of chemical weathering and wind erosion.
California barrel cactus or desert barrel cactus Ferocactus cylindraceus at the Alabama Hills (Erik Olsen)
One of the most striking aspects of the Alabama Hills is the sharp contrast they present with the neighboring glacially carved ridges of the Sierra Nevada. There are almost 10,000 feet of vertical difference between Mount Whitney’s majestic granite peaks and the rolling boulders of the Alabama Hills. The Sierra’s jagged, ice-carved peaks seem to rise abruptly from the gentle, rounded contours of the hills. Geologically, both landforms consist of the same granitic rock, but they have been shaped by very different forces. While glaciers carved the high peaks of the Sierra Nevada, creating sharp ridges and deep valleys, the Alabama Hills experienced a slower, more gradual transformation. Erosion by wind, rain, and temperature changes slowly sculpted the monzogranite, creating the unique and surreal formations we see today.
While the geological history of the Alabama Hills is well known, its biology is equally fascinating. At first glance, the landscape may seem inhospitable to life, but a closer inspection reveals a surprisingly diverse ecosystem adapted to the harsh conditions. In recent years, new studies have shed light on the resilience and adaptation strategies of plants and animals in this region.
The Alabama Hills are home to a variety of plant species, many of which have evolved to survive in the dry, rocky soil. Sagebrush, saltbush, and other desert plants dominate the landscape, while prickly cacti add a distinct desert charm. One particularly intriguing plant is Atriplex hymenelytra, commonly known as desert holly, which has adapted to the high-salinity soil by developing silvery leaves that reflect sunlight, reducing water loss and protecting the plant from extreme temperatures.
Atriplex hymenelytra, Desert holly.
Wildlife, too, has found ways to thrive in this rugged terrain. The Alabama Hills are home to numerous bird species, reptiles, and small mammals. Species like the western fence lizard, desert cottontail, and even mountain lions are part of this surprisingly vibrant ecosystem. Birdwatchers can often spot red-tailed hawks, ravens, and sometimes even golden eagles soaring above the hills, taking advantage of the thermal updrafts created by the warm rock surfaces.
Recent studies have added to our understanding of the Alabama Hills’ unique environment. One particularly interesting research project conducted by ecologists focuses on the role of cryptobiotic soil crusts—thin layers of lichens, mosses, and bacteria that live on the surface of desert soils. These crusts play a critical role in preventing erosion and retaining moisture in arid environments like the Alabama Hills. The study revealed that these soil crusts are more widespread than previously thought, and their destruction by human activity, such as off-road vehicle use, could have significant ecological consequences.
Alabama Hills vegetation (Erik Olsen)
Cryptobiotic crusts act as a protective cover on desert soils, anchoring loose particles and reducing susceptibility to wind and water erosion. When these crusts are damaged, the soil is left vulnerable to erosion, which can lead to large-scale soil loss. This erosion depletes the land of nutrients, reduces soil fertility, and diminishes its ability to support native vegetation.
Additionally, geologists continue to study the impact of erosion and weathering on the Alabama Hills’ distinctive rock formations. Advances in remote sensing technology have allowed scientists to map the region’s geological features in more detail than ever before, providing new insights into how these formations developed and how they are likely to change in the future.
The hills were (controversially) named after the CSS Alabama, a Confederate warship that operated during the American Civil War. The name was given to the hills by a group of Confederate sympathizers who were prospecting in the area in the 1860s. Several groups have launched campaigns to change the name to erase its connection with Southern slavery.
Alabama Hills (Erik Olsen)
In addition to their geological and historical importance, the Alabama Hills are also important for their recreational opportunities. The hills offer a variety of outdoor activities such as hiking, rock climbing, and photography. The range of hills is also a popular spot for stargazers and astro-photographers, due to the relatively low light pollution in the region.
The Alabama Hills are a must-see destination for anyone interested in geology, history, or outdoor activities in California.
