57
(^17) Koalas eat tough eucalyptus
leaves that are hard to digest and
provide little energy, so they spend
about 15 hours a day sleeping and
another five hours dozing.
(^18) Dogs sleep for 10 hours a day.
(^19) Red pandas, which are like
bamboo-eating raccoons, sleep for
about 11 hours a day.
(^22) Chinchillas sleep in burrows for
about 13 hours a day, high in the
mountains of South America.
(^23) Rabbits sleep for about eight
hours, mainly during the day. They
prefer to feed at night when they
are not so vulnerable to predators.
(^24) Chimpanzees normally sleep
for 10 hours a day, but baby
chimps sleep for longer.
(^25) Baby gorillas need more
sleep than their parents, and
may sleep or doze for more
than 15 hours.
(^26) Hedgehogs usually
sleep for 10 hours during
the day. In winter, they
hibernate (spend the
cold months in
a sleep-like,
inactive state).
(^20) Cats often sleep for 15 hours a
day. Wild cats are most active
during the night.
(^21) Lions sleep for at least 13 hours.
While they sleep, other animals feed
near them without risking attack.
Dogs have similar sleep
patterns to humans
Horses can sleep
standing up without
toppling over because
their legs lock in place
25
11
26
20
18
5
17
16
4
19
2
13
15
12
9
10
056_057_Sleep.indd 57 03/01/19 12:09 PM