Sorry but someone had to lower the tone I suppose
Birds are supposed to be living relatives of dinosaurs however birds do not reproduce until they are fully grown. Fossilised remains of pregnant dinosaurs have shown by inspection of the growth rings and medullary bone which is laid down just before egg laying that teen pregnancy affected the dinosaurs.
Arguably earlier reproduction can be an advantage..... So .. ?
http://www.stuff.co.nz/4357278a12.html
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1 comment:
'Teengaer' is a pretty modern concept. Dinosaurs are far from the only species that start reproducing before they're fully grown, I guess it's about length of growing time compared to length of adult time that's key here :)
Earlier reproduction is not always an advantage BTW, for example it might shorten total reproductive lifespan...
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