This is a simplified evolutionary tree of six representative animal phyla, illustrating differences in body form, habitat, and species numbers among them. This visual may only be used in ...

Lophotrochozoa is a remarkably diverse group of animals that includes mollusks, worms, and some lesser-known, peculiar creatures. The evolutionary relationships among some of the phyla within this ...

But then in the blink of an eye on a geological timescale, the first major animal phyla appeared, including arthropods, mollusks, echinoderms, and early vertebrates. This was a period of intense ...

Q: How did these different kinds of eyes evolve? A: The traditional idea is that the eyes evolved separately into separate animal phyla. An insect eye looks so different from a human eye that one ...

A study published in Science on the evolution of molluscan forms and genomes offers a fascinating glimpse into the complex and diverse biology of mollusks, | Plants And Animals ...