In article: <4422ml$pbk@geraldo.cc.utexas.edu> chris brochu
<gator@mail.utexas.edu> writes: > >The only way semi-aquatic mammals could co-exist with croc would be if
they were very quick or very large.
Might it not depend on the local availability of other food sources
which were (a) plentiful and (b) very easy to devour, like tilapia fish?