There are three rare mammals who live in this level.
In addition he did genetic research work on rare or endangered mammals.
Roth was encouraged to continue finding and collecting rare prehistoric mammals as a profession.
Many of the continent's rarest mammals are found here, and nearly 600 species of bird - the final figure is expected to be 700.
The greater noctule bat is a rare mammal in the order Chiroptera.
It is probably the rarest large mammal on earth.
It is one of the rarest large mammals in the world and is critically endangered.
Chillingham Park (01668 215250, www.chillinghamwildcattle.com), home to these rare mammals.
Several rare large mammal and bird species are found in Bwabwata.
Saola is the name of a rare mammal found in Vietnam.