What looks like a spider but isn’t one, lives underwater and breathes through its legs? That would be the mysterious sea spider. With over 1,300 species living in every ocean, these marine arthropods ...

After years of research, it has been identified as a representative of sea spiders but of an unknown species. In marine fauna taxonomy, it has been classified as an Austropallene halanychi.

Contrary to the common sea spider reproductive pattern, these polar giants don’t carry their eggs around; instead, they attach thousands of tiny eggs to the rocky seafloor. Sea spiders ...