Seals

#When chasing penguins, the leopard seal can leap 2 meter from the onto an ice floe.
#Male southern elephant seals, which weigh up to '3500' kg, have inflatable snouts used to impress females during mating displays.
#In the 4 days after being born, hooded seal pups double their weight from 25 kg to 50 kg.
#The elephant seal can dive as deep as 1500 meter and can stay in under water for 1-2 hours.
#Seals can sleep floating vertically in the water first beneath the surface, then rising occasionally to breath through their nostrils.      
#When a seal dives deep, its heartbeat slows from 65-120beats per minute to 4-15 beats per minute.
#The fur seals of the North Pacific spends up to 8 months of the year continuously at sea, feeding.