It's just a damned good thing for us that insects aren't as big as emus, and that very few birds are. We wouldn't stand a chance in hell in the Cretaceous period.
Jesus Christ, it's only by sheer luck that badgers aren't the size of blue whales; imagine the scale of their dens, undermining cities and incorporating our subways into their enormous subterranean underworlds. Why, if horses were the size of ants, wouldn't they be easy to lose? Imagine an eagle with the head of a tiger. Really puts humanity into perspective, doesn't it?
sheer luck or temperature? If you drop a rat and a snake into an aquarium the survival rate of each is largely a function of temperature.
Likewise the giganticism of cold blooded dinos may well be a function of temperature. And or course the recent dominance of warm blooded mammals is largely a function of temperature too.
I consider global warming an innocuous threat, far more upsides than downsides.
But among the unknowables is what impact 5 degrees may have on the proliferation and speed of insects. Or cold blooded birds. I kinda worry that even 5 degrees may tip the scale in favor of our cold blooded cousins. When I worry about GW anyway.