Shrew

Shrews are creatures of the kingdom Carpozoa descended from the Shrew Lizard. Shrews in general bear several similarities to mammals on Earth. They produce milk for their young just like mammals, and most species have a marsupium in which they raise their young. Most shrews, like the majority of Carpozoa, have six eyes, and all the shrews have at least a rudimentary sense of hearing inherited from the Shrew Lizard. A major line of shrews developed fur.

Breathing and Blood
Shrews have red, iron-based blood.

Extinction
Though they remain extant to this day, shrews are no stranger to extinction events, often being whittled down to just a few species in major ones.

Most of the shrews, even the Shrew Lizard, were wiped out by a deadly plague in generation 95. This plague was spread by one of their parasitic members, the Death Soriparasite. All extant shrews at the time went extinct except for the Bearded Shrew, the River Shrew, the Soriparasite, and the Night Glider. The bearded shrew, the soriparasite, and all of their respective descendants would soon also go extinct due to the gamma-ray burst, which ultimately left only the Beach Shrotter, the Cave Night Glider, and the Velishroot.

Locomotion
Among extant shrews, most furred shrews are quadrupeds while most bubbleskins are bipeds.