
To Fly or Not to Fly?
Loading player...
Note: If a source doesn't work, try switching to a different one. Some sources may have ads or pop-ups - we recommend using an ad blocker for the best experience.
The first episode looks at how birds first took to the skies in the wake of the insects. It begins in Mexico, where Attenborough observes bats being outmaneuvered by a red-tailed hawk.