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Description:The Amazon River
Dolphin is a freshwater dolphin native to the Amazon and
Orinoco Rivers in northern South America. It is the largest
species of river dolphin. Adults can weigh as much as 400
pounds and grow to a length of about 8 feet. Also known as
the Boto, the Amazon River Dolphin is largely pink or gray
with small eyes and a bulbous forehead that ends in a long,
tube-shaped beak. The beak has sensory hairs that allows
the dolphin to sense food in the murky river depths. The
Amazon River Dolphin lacks a dorsal fin, but rather has a
low ridge along the back. This slow-moving dolphin swims
through the river at a maximum speed of about nine miles
per hour, though it can move faster in bursts. Its dives
last no longer than two minutes. It can use sonar to navigate
through murky waters such as flooded forest bottoms. The
Amazon River Dolphin is known to be quite curious of people
and are often reported rubbing up against divers and even
trying to play "tag-like" games with them.
Diet: The Amazon River Dolphin
eats of a variety of fish, crabs, and even turtles.
Habitat/Range: This marine
mammal prefers the deeper parts of the river, particularly
around sandbars and bends in the river. When the rivers flood,
the Amazon River Dolphin is found in flooded forests, swimming
in between the tree trunks. It occurs in the Amazon and Orinoco
Rivers in northern South America. It does not occur in salt
water.
Breeding: Females can breed
after 6-10 years and give birth to a single calf after a
gestation period of 11 months. Calves stay with their mothers
for up to two and a half years. Females only breed once every
four or five years.
Status: The Amazon River Dolphin is listed
as a vulnerable species. Habitat destruction and fishing
practices have led to its decline. Dams within the Amazon
River have fragmented populations. Nevertheless, there are
still healthy populations of Amazon River Dolphins remaining. |