Page 84 - World of Animals - Book of Sharks & Ocean Predators

Sharks & Ocean Predators
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18

Amazing

facts

Seals

From the gaseous blood of an elephant
seal to their four-legged ancestors, this
group of marine carnivores has a lot of
secrets that we’re gradually uncovering
The deepest-diving
seals are elephant seals,
reaching depths of
2,400m (7,835ft). That’s
like swimming 50 lengths
of an Olympic swimming
pool without taking a
single breath.

Pups wait to be waterproof
Most newborn seal pups are born

with silky so white fur and spent their
first four to six weeks of their lives on

land. During this time, their layer of
insulating blubber thickens and their
baby fluff is replaced by waterproof fur.

Harbour seals have unique
whiskers. They’re twisted
Seals evolved in the Arctic from in an asymmetric pattern
four-legged mammals around which allows the animals
30 million years ago. Their to detect the trail of a fi sh
closest relatives on land are 35 seconds after it has
otters, dogs and bears. passed the seal.

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