par Alexis Lim Il y a 10 années
1370
Plus de détails
thats really cool
-it breathes thorugh its nostril
-limbs are adapted as flippers
-skin on the soles of the walrus's flippers is thick and rough to provide traction on land and ice
-in water, it holds it's short and square foreflippers for steering in the water
-on land,it position its foreflippers at right angles to the bofy for walking
air sac under its throat which acts like a floatation bubble and allows it to bob vertically in the water and sleep
long tusks are used ofr fighting, dominance and display.
they are also used to form and maintain holes in the ice and help it in the climbing out of water onto ice
-has a blubber layer up to 15cm thick to keep it warm
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This is when the penguin slides on its belly to conserve energy when moving quickly.
Eyes are adapted for underwater vision as this is the primary means of locating prey and avoiding predators.
The white belly provides camouflage (as it is similar to the reflective water surface). The black back also provides camouflage (from aerial view).
Useless in flight but act as excellent flippers for competent movement in the waters.
The smooth, thick-layered plummage allows an air layer to be preserved thus ensuring buoyancy as well as insulation in a cold environment.
to excrete excessive salts, thus maintain water potential in blood
use against predators
as rich food source for long flights
energy-saving, able to soar in the wind for long distances
