The new leech species has three jaws, five pairs of eyes aligned in a U-shape, a disc-shaped “caudal sucker” for attachment, ...

"This research provides an essential reference for understanding how developmental and genetic factors influence eye formation in spiders. With several Tegenaria species in Israel’s caves ...

Spiders living in caves show how tiny genetic changes can reshape vision or cause complete blindness over generations.

Instead of eyes, the fish has sockets filled with fatty ... path relatively recently when the species was confined to caves, making the species “young” on an evolutionary time scale, Freyhof ...

Now, a study has honed in on the development of a spider species found within caves, and looking closer ... look at the gene expression involved in eye development. They were particularly ...