[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Eye slits



So far as I remember eye slits are a characterisitc of nocturnal
hunters -- cats, crocodiles etc.  ARe any dinos thought to  fit
into this category?  If so they might possibly have  had slit 
pupis.  Any diurnal hunters would almost certainly have had
round pupils.
There are very few nocturnal birds of prey - only the owls, I
think.  That might be one reason few birds have modified the
shape of the pupil over the last 85 million years or so.
David

--
>From: David Brez Carlisle
bk090@Freenet Carleton.CA