[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Spinosaurs ate pterosaurs
David Marjanovic (email@example.com) wrote:
<<Strikes me as an inefficient way to make a living.>>
Tim Williams (firstname.lastname@example.org) wrote:
<Yes, I would agree. Seems like a tough way to make a living: leaping off
the ground to snatch flying insects out of the air. Plus, this would put
insect-catching theropods in competition with insect-catching pterosaurs,
which had a 70 mya headstart and the wings to show for it.>
Indeed. However, I will have to disagree. Yes, it does seem darn
inefficient that the food does not fall conveniently at one's feet, but to
catch it, one must leap _after_ it :). Darn cheetahs specializing in being
extremely inefficient hunters of only fast prey. [This is intended to be
Some birds have the nerve to soak their entire plumage they spend hours
cleaning to catch _one_ fish (anhingas, cormorants, kingfishers). Leaping,
by extension, can be repeated numerous times without losing efficient
productive time cleaning oneself or having to rest for half an hour or
longer (as in cheetahs). There are other hyper-specialized animals that
feed by enormous strain on their bodies, or by doing things that are
extraordinary by comparison to, say, salmon, as in the "spitting" fish.
Jaime A. Headden
Little steps are often the hardest to take. We are too used to making leaps
in the face of adversity, that a simple skip is so hard to do. We should all
learn to walk soft, walk small, see the world around us rather than zoom by it.
"Innocent, unbiased observation is a myth." --- P.B. Medawar (1969)
Do you Yahoo!?
Take Yahoo! Mail with you! Get it on your mobile phone.