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 ...

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 ...

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 ...