biology
Holy Crap These Leech Cocoons Are Incredible

Leech cocoons, the sacks in which leeches lay their eggs, have an incredible solid-foam surface, as the image below shows: Read More >>

space
Distant Galaxies Look Mysteriously Different From Our Own

There’s a gravitational anomaly that permeates our entire universe: The way most galaxies and clusters of galaxies behave implies that there’s around six times more matter than we actually observe. Scientists called the missing stuff that should create the unaccounted-for gravity we measure “dark matter.” Read More >>