Evolution

FEATURES

Photo
Sirenians , or seacows, are a group of marine mammals that include manatees and dugongs . Currently, only a single species of seacow is found anywhere in the world. However, the fossil record of...
Blog entry MORE STORIES Blog entry MORE AUDIO / VIDEO
This summer, many of you have likely enjoyed feasting on crabs, be they blue,...
Great White Sharks are stealthy hunters and the secret is in their skin. Shark...
Slideshow MORE STORIES Slideshow MORE AUDIO / VIDEO
Bioluminescence is one of the more captivating adaptations that have evolved in...

LATEST POSTS

This early whale was well suited to life at sea. But it also may have spent time on land. An ancestor of the right whale , Maiacetus lived 49-40 million years ago. It had flipper-like limbs and webbed feet, like modern seals. But...
Vertebrates evolved in the sea and eventually moved onto land. The ancestors...
These "elevator" rudists, an ancient bivalve, used one long heavy valve to...

LEARN MORE

Whales swim, but their ancestors walked. Whales are mammals (like us) whose ancestors lived on land. Life probably began in...
The basic body plans of all modern animals were set during the Cambrian Period, 542 - 488 million years ago. Your friends, family, and pet turtle may not look much like the creatures here. But we and...
For the last 150 years, paleontologists have debated the origins of the great white shark . Many believe that they descended from the 50-foot megalodon, also known as the megatooth shark (...
The Galápagos Islands site in Ecuador was inscribed on the World Heritage List in 1978. Located in the equatorial Pacific Ocean nearly 1000 km from South America, the Galapagos Islands and the...
Charles Darwin is so well known he almost needs no introduction. The 19th-century naturalist and geologist spent his life documenting and collecting information on the natural world . From birds to...
Bioluminescence is one of the more captivating adaptations that have evolved in marine animals. It's the ability of organisms to create and emit light. Dive underwater and you may witness lightshows...
Large whales are notoriously hard to study. Except when rising to breathe, they swim beneath the ocean's surface out of human sight, which makes it difficult to find and track them. They often live...
For a long time, scientists thought that some small tentacled fossils were early ancestors of jellyfish. But a new study has found that these ancient animals are actually related to an entirely...
Dr. Stephen Cairns is a research zoologist and chair of the Department of Invertebrate Zoology at the Smithsonian’s National Museum of Natural History. His research focuses on the diversity,...
This family tree shows how the ancestors of whales moved gradually from land to sea. Early whales took advantage of abundant marine resources, feeding on the ocean's fish, squid and other larger food...
What makes a top predator? Razor-sharp teeth? Speed? Strength? Size? Who is the most fearsome hunter? It depends on where and when you look.
This transparent cockatoo squid ( Leachia sp.), also known as a glass squid, lives in the depths of the ocean and has many adaptations to help it survive there. It retains ammonia solutions inside...
Hidden beneath Arctic ice is a world few have ever seen. Take the icy plunge with a team of ice-loving scientists.
This early whale was well suited to life at sea. But it also may have spent time on land. An ancestor of the right whale , Maiacetus lived 49-40 million years ago. It had flipper-like limbs and...
This 1837 sketch is Charles Darwin’s first diagram of an evolutionary tree. It appears in his First Notebook on Transmutation of Species (1837).
Whales have existed for million of years. Watch this animation, from the Sant Ocean Hall , to see how they evolved from land-dwellers to the animals we know today. Discover more about whale evolution...
A video of the Palauan primitive cave eel ( Protanguilla palau ) swimming in the Pacific off the Republic of Palau . Jiro Sakaue, a Japanese research diver, first discovered the new genus and species...
Come one, come all! See the amazing, the astonishing, half-animal, half-plant! Journey to Tampa Bay, Florida, where scientist Skip Pierce and one of his students first made a remarkable discovery...
Vertebrates evolved in the sea and eventually moved onto land. The ancestors of whales later returned to the sea, taking advantage of its rich food supplies. As early whales adapted to their new...
Subscribe to Evolution