Page 22 - (DK) Ocean - The Definitive Visual Guide
P. 22
AVOIDING A STING
Clownfish have a remarkable relationship with some anemones,
feeding and sleeping among them. The anemones’ stinging tentacles
repel all other fish, but the clownfish avoid triggering the firing of the
anemones’ stinging cells with an undulating swimming action and by
secreting chemicals that suppress the firing process.
LEARNING TO SWIM
Being able to swim is a useful skill for polar bears, which for part of
the year track their prey across shifting sea ice in the Arctic Ocean
and are sometimes seen in the water many miles from land. While
underwater, they keep their eyes open but close their nostrils. They
can remain submerged for up to two minutes.
