Giant Spider Crab Molting (time-Lapse) To grow larger, crabs breakout of their exoskeleton, pump water into their new soft exoskeleton to inflate it some, then absorb calcium to harden it into a new shell!
Before a green-rumped parrotlet is even able to chirp and squawk, mom and dad teach it a distinct series of sounds used by parrots to recognize a specific individual. In short, they give their nestling a name. / via / also, Parrotlets!
Saiga Antelope - Saiga is classified as critically endangered by the IUCN. There is an estimated total number of Saigas today, which live in Kalmykia, three areas of Kazakhstan and in two isolated areas of Mongolia.
a species that's only known from seven specimens collected in the Marshall Islands; they haven't even given it a proper scientific name yet! Right now it just goes by Notobryon sp. (I hate caterpillars but this is a pretty cool caterpillar.