[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Students decide if Tyrannosaurus could chase down & kill a Triceratops
On Thu, Feb 20th, 2014 at 8:49 AM, Ben Creisler <email@example.com> wrote:
> An article that may be of interest:
> S. Randolph May (2014)
> The Coevolution of Tyrannosaurus & Its Prey: Could Tyrannosaurus Chase
> Down & Kill a Triceratops for Lunch?
> The American Biology Teacher 76(2):118-123
> doi: http://dx.doi.org/10.1525/abt.2014.76.2.8
> Students will analyze the coevolution of the predator--prey
> relationships between Tyrannosaurus rex and its prey species using
> analyses of animal speeds from fossilized trackways, prey-animal
> armaments, adaptive behaviors, bite marks on prey-animal fossils,
> predator--prey ratios, and scavenger competition. The students will be
> asked to decide whether T. rex was a predator, an opportunistic
> scavenger, or an obligate scavenger.
Surely the only hypothesis to be tested is whether or not T.rex was an obligate
about any predator is also an opportunistic scavenger.
Relative speed need have nothing to do with the issue. Slower predators can
catch faster prey by
ambushing them, or by having superior stamina and exhausting them in a
prolonged chase. It also
helps obligate scavengers to be able to get to a carcass before anything else
does, so a fast animal
needn't be an active predator.
Spatial Data Analyst Australian Dinosaurs
Melbourne, Australia http://home.alphalink.com.au/~dannj