What's most commonly known about the KT extinction event
is that all dinosaurs except birds went extinct in that event.
But what's less well understood is that many other animals
and plants and
invertebrates went extinct in the KT mass extinction.
For example mammals, which we're living at the time of dinosaurs,
75% of them, or three-quarters of them, went extinct at the KT Boundary. Only a few slipped through.
Things like salamanders and frogs, which we think of as very sensitive organisms today ,
actually skated across the KT Boundary with very little extinction
Turtles didn't incur much extinction either.
But things like snakes and lizards
took some massive hits across the KT Boundary.
Generally speaking, things that were smaller in body size
tended to do better across the boundary and those things that were
aquatic, lived in
bodies of water, like rivers and streams and ponds, seemed to have done better
than those things that were living on the land's surface, like mammals and dinosaurs.
