Wasn’t this a 1950’s movie, ‘The Incredible Shrinking Animals’ ?
Animals could start shrinking because of global warming, scientists have predicted, after discovering that mammals became ‘dwarfed’ in a similar episode of climate change 50 million years ago.
Paleontologists discovered the fossil teeth belonging to an early ancestor of modern horses as well as a rabbit-sized hoofed mammal.
The teeth revealed that during Eocene Thermal Maximum 2, a warming event of around 3C that occurred approximately 53.7 million years ago, the animals shrank in size by 14 per cent….
“This suggests that dwarfing will be a likely natural response of some mammals to future global warming.”