His design incorporates a downward-angled port where bats can enter, leading to a 34mm-wide chute with roughened timber walls which they can crawl up to gain access to an attic 10.5m long and 3m high at the apex.

CNN: Architects building dream homes for bats

Both had long tails to counterbalance large skulls, and, proportionally, they had the smallest forelimbs of any apex predator.

NEWYORKER: Bones of Contention