With global warming and our 6th global extinction on our medium to longer term future doorstep, we are already starting to see the effects of a changing world eco system and climate.

In this week’s on-air chat Hong Kong Radio 3’s Phil Whelan and I go in search of clues of what might happen to wildlife, which might evolve and adapt to a new global ecosystem and which might not.

As with every living species, long term survival requires food and environment to be able to support and nurture the species that lives within it.

When these core elements change our physiology and psychology adapt in response to these changes, until they can’t.

As food sources for large mammals (elephants, rhinoceroses, horses etc) begin to become scarce, there are 2 evolutionary choices – become extinct or shrink in size to better match your food source and environment.

Birds however may become larger, as they have the ability to migrate in search of better conditions and with smaller mammals on the ground perhaps mammal take-aways are easier to find.

Listen now to hear what may happen to reptiles and fish and also breaking news on Facebook announcement that it’s dropping its facial recognition functionality.