Scientists have long puzzled over the origins of eukaryotes, the domain of life defined by cells with a membrane-bound nucleus, which includes all animals, plants, fungi, and insects. If they unravel ...

From the small ossicones of a giraffe to the gigantic antlers of a moose, all these distinct headgears evolved from the same ancestor but are dramatically different in size and shape due to ...

Surprisingly, genome comparisons have failed to resolve a major question in animal evolution: Which living animals are the descendants of the earliest animals to evolve in the world's oceans?

Researchers investigate into the various lineages of Asgard archae, and determine one related to Hods as the ancestor of ...

Hormiphora californensis, also called the California sea gooseberry, is a comb jelly common in California coastal waters. Monterey Bay Aquarium Research Institute More than 600 million years ago, the ...

Evidence of a worm-like creature about the size of a grain of rice has been uncovered in South Australia, and researchers believe it is the oldest ancestor on the family tree that includes humans and ...

Scientists believe they may have identified the first animal to have roamed the Earth about 700 million years ago, a new study published in Nature revealed. Researchers determined that the first ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. If you’ve ever cooked a big holiday meal or tried to learn a ...

In lists of the most popular dog breeds and most popular cat breeds, you’ll often find flat-faced, or brachycephalic, animals. Among the most well-known brachycephalic dogs are pugs and French ...

For more than a century, biologists have wondered what the earliest animals were like when they first arose in the ancient oceans over half a billion years ago. Searching among today's most ...

From the small ossicones on a giraffe to the gigantic antlers of a male moose -- which can grow as wide as a car -- the headgear of ruminant hooved mammals is extremely diverse, and new research ...