Page 24 - It Can't Be True! Animals! - Unbelievable Facts About Amazing Animals (DK)

24

Antarctic
krill can form
huge groups,
even bigger
than locust
swarms.

120 million 32 million

Antarctic krill House mice

Hundreds of millions of tiny shrimp-like Antarctic Crops are regularly ruined when swarms of
krill turn the waters red with swarms several kilometres several million mice inexplicably move across
wide. Their swarms can even be spotted from space. rural Australia roughly once every four years.

Animals form swarms
for many different LOCUST SWARMS
reasons. Antarctic krill
pull together to prevent Endless clouds of desert
predators from singling
out a target. Garter locusts sweep across North
snakes swarm during Africa into parts of southern
mating season. Some Europe, the Middle East, and
animals, like red-billed South Asia in swarms of up to
queleas, join forces in 80 million individuals. These
search of food. The insects consume around
reason why house 192 million kg (423 million lb)
mice swarm, however, of crops a day, leaving
remains a mystery. devastation in their wake.

024-025_310219_Swarms.indd 24 09/10/2019 15:12