Hi all
On bats, their young are born quite small and the parents, some species at
least, fly with the young clinging on to their fur (and probably teats?!).
Gould's Wattle-bats are so sensitive to temperatures (only reason?) that
they will move them like this to alternative roosts, often with twins.
Similarly Rakali (Hydromys chrysogaster aka Australian water rats) also take
their young into their habitat - water - hanging on to their teats. Indeed
the front teeth of the young grow in a crescent shape initially to
facilitate this.
And rats' teeth do not have our enamel. They grow continually and are
sharpened - aren't they just! - by gnawing.
So clearly birds should learn to have nipples. First in line might be the
pigeons, with their production of a "milk" for their young.
OK this is just stuff I've heard/remembered. Others are welcome to shoot it
down!
Michael Norris
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www.birding-aus.org
birding-aus.blogspot.com
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