Page 115 - World of Animals - Book of Sharks & Ocean Predators

Dolphins
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Problem-solving

Life presents animals with puzzles on a daily basis and only animals

with the best brains can find their way around the trickiest problems
01 Tool use 02 Hunting 03 Avoiding predators
Dolphins around the coast of Australia have Across the globe, different groups of dolphins Dolphins form a defensive circle around
started to use tools to protect their sensitive have perfected a variety of strategies to catch weak members of their pod when a predator

beaks. The fish that burrow under the sand fish. In Brazil, a pod of dolphins has teamed approaches. Sharks and other carnivorous fi sh

don’t have an air-filled swim bladder, making up with the local fishermen. They herd fi sh would gladly attack a lone dolphin, but rarely

them difficult to locate with sonar. To combat toward the shore and give the fi shermen a approach large groups. Even the colouration
this, the dolphins began foraging while signal to cast their nets. The dolphins then of some dolphins confuses predators, helping
shielding their faces with sponges. get their reward of leftover fi sh. them keep camoufl aged.
How dolphins hunt
Creativity shows how intelligence and brainy dolphins
have invented unique ways to catch fi sh
Herding fi sh
Deep-water dolphins herd
fish into a ball and take

turns to swim through
the middle. They stay in
constant contact and swim
at top speed to keep the
fish where they want them.

Confusing the prey Makeshift nets Blowing bubbles
The dolphins surrounding the
One dolphin swims in a circle The rest of the group wait for fi sh to fish create nets of bubbles.

while beating its tail against the leap out of the makeshift net.
silt. This creates a ring of mud
that confuses the fi sh inside. Going on land!
Risking their lives to catch fi sh,

dolphins chase fish to the banks of
rivers and seashores. The animals
launch themselves out of the
water to snatch the escaping fi sh.

The art of hydroplaning
Speeding through shallow water
allows dolphins to access fi sh that
swim close to the shore. This is called
hydroplaning and the dolphin skims
along in the shallow surf at high speed.

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