Animals with a backbone are called vertebrates. Animals without a backbone are called invertebrates. Vertebrates and invertebrates can be sorted into smaller groups. Vertebrates, for example ...

On Jan. 3, a swell shark egg hatched at Shreveport Aquarium in Shreveport, Louisiana. The egg was discovered by aquarium ...

Vertebrates are animals that have a backbone inside their body. The major groups include fish, amphibians, reptiles, birds and mammals. Invertebrates don't have a backbone. They either have a soft ...

and specific brain regions are devoted to this activity in both invertebrates and vertebrates. The Nervous System and Behavior Simple animals, like sea jellies, have direct neural connections ...

But not all scientists agree that invertebrates feel anything analogous to vertebrate—much less human—emotion. Frans de Waal, a primatologist and animal behaviorist at Emory University, and Kristin ...

while species that feed across multiple trophic levels (i.e., on the remains and on the other invertebrates) are called omnivores. A number of large vertebrates will scavenge dead animals for ...

Discover the Acorn Worm, a primitive creature linking vertebrates and invertebrates, and its profound impact on our evolutionary history.

and animal-based research continues to be critical in the search for treatments and cures for many diseases including cancer, heart disease, neurodegenerative diseases and infectious diseases. All use ...

"Retrotransposons compose about 40% of our genomes, but nothing is known about how they might have helped animals ... of ...