Page 112 - One Million Things: Animal Life - The Incredible Visual Guide

ARCTIC

1

RED CROSSBILL
1
Found in the northern forests of NORTH 4
North America and Europe, red AMERICA
crossbills eat conifer seeds. In
years when seeds are in short
supply, a mass movement, or
irruption, occurs as crossbills 2 8
fly south in search of food.

EUROPEAN EEL
4
GRAY WHALE 3 After starting life in the western
2
Each spring and fall, Atlantic Ocean, young eels
gray whales migrate between migrate east to European rivers, a
summer feeding grounds in the journey that can take three years.
Arctic and winter lagoons off After many years there they migrate
Baja California, Mexico, where back to their birthplace to breed.
the females give birth.

SPINY LOBSTER
3
Adult Caribbean spiny lobsters
live in coral reefs but in the fall SOUTH
they migrate to deeper waters AMERICA 5
to avoid colder conditions.
Unusually, they travel together
and in single file until they
reach open water.
5 GREEN TURTLE
Every three years or so, these
marine reptiles take a break from
feeding on seagrasses off the coast
of Brazil and make the 2,500-mile
MIGRATION (4,000-km) round trip to Ascension
Island in the south Atlantic to mate
and breed.
While many animals never leave their habitats,
others regularly migrate (move from one habitat to
another) in order to avoid excessive heat or cold,
to find food, or to breed. The journeys can be short,
like those of the European toad, but sometimes the 6
distances covered are immense. Migration often
coincides with the changing seasons, but for some,
such as the eel, it spans a lifetime.

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