3. Whales are
mammals!
Mammals are a group of
animals which are the
main features of the lungs
breathing,
constant body
temperature, their body is
covered with hair, and
bear live young that feed
breast milk.
4. WHALES ARE…
Whales are red
mammalian with more
than 80 species. All live
exclusively in water,
except for a few river
dolphins all other
species of whales live in
sea.
8. Killer Whale
Killer Whales live near Unimak Island, eastern Aleutian Island
Size comparison to an average human
The Killer Whale (Orcinus orca), commonly referred to as the
orca and, less commonly, blackfish, is the largest species of the
dolphin family. They are found in all of the world's oceans, from
the frigid Arctic and Antarctic regions to tropical seas. Killer
Whales as a species have a diverse diet, although populations
often specialize in particular types of prey. Some feed
exclusively on fish, particularly salmon, and other populations
hunt marine mammals such as sea lions, seals, walruses and
even large whales. As they are known to be predators of large
sharks, Killer Whales are regarded as the ocean's apex predator.
10. Interesting Facts about Whales
Scientists believe that early whales actually walked the earth. They fed on fresh and
saltwater fish. Eventually, they lost their legs and nostrils, and became the creatures we
know today.
Domino effect: The sea otter population in the Aleutian Islands has declined by about
90 percent, and this change is due to a disturbance in the web of marine life. The
decline in the forage fish population has several possible causes, including over-fishing
by commercial fishermen, and warming of the Northern Pacific climate.
Scientists have determined that killer whales can live a maximum of 35 years. How? By
looking at a cross-section of a killer whale's tooth! Killer whales, like other marine
mammals, produce a periodic growth layer on the teeth. By counting these layers,
scientists can estimate the animal's age.
Marine mammals such as whales and dolphins spend their entire lives at sea. So how
can they sleep and not drown? Scientists have observed two basic methods of sleeping:
They either rest quietly in the water, vertically or horizontally, or sleep while swimming
slowly next to another animal. Young whales and dolphins actually rest, eat, and sleep
while their mother swims, towing them along in her slipstream. This is called "echelon
swimming." At these times, the mother will also sleep on the move. In fact, she cannot
stop swimming for the first several weeks of a newborn's life. If she does for any length
of time, the calf will begin to sink; it is not born with enough body fat or blubber to float
easily
11. More Curiosity
About Blue Whale
Sounds that emit blue
whales have 190
decibels and are
stronger than the sound
that emits a plane in
flight. Since the sixties
their intensity
decreased by 31 percent,
while other
characteristics are not
changed. Males, among
other things, are singing
to each location and
attract females.
