New research shows that the earliest sponges were soft bodied and lacked skeletons, explaining why their oldest fossils are ...

By drawing water into an internal, muscular cavity and forcefully expelling it through a flexible, narrow tube, known as a ...

Scientists have uncovered a surprising new way that giant embryonic cells divide—without relying on the classic “purse-string” ring long thought essential for splitting a cell in two. Studying ...

Researchers have uncovered something extraordinary: starfish don't have five arms. They are, genetically, one massive, ...

Scientists are exploring pig skin to gain a fuller understanding of how this process works. The result could mean uncovering ...