Ten numerical facts about bats:
25% of all mammal species are bats.
3,000 metres; the greatest height at which bats have been tracked
2 grams: the weight of the world’s smallest mammal : the bumblebee bat.
1,000: the number of times per minute a bat’s heart beats in flight.
10: the number of times per minute a hibernating bat’s heart beats
250,000; the number of bats that it is estimated are killed by cats every year in the UK.
200 tons: the weight of insects eaten each night by the 20 million Mexican free-tailed bats that live in Bracken Cave in Texas
1: the number of pups a female bat has each year.
13: the number of bat species that have been identified in Southwick Country Park Local Nature Reserve
0345 1300 228: the number of the National Bat Helpline
Header picture: greater horseshoe bat at rest (CC0)