2006-10-28 13:01:44 · 4 answers · asked by Angel V 2 in Science & Mathematics ➔ Biology
Sound propagates much faster and farther through water than through air so seals and whales do not need large ears.
Sound speed in air is nominally 340m/s; in water, 1500m/s
2006-10-28 13:04:40 · answer #1 · answered by Anonymous · 3⤊ 1⤋
Seals and whales don't hear the same way as land animals. They feel the vibrations in the water (eg soar), no sea animals have land ears. Rabbits and deer have big ears because they evolved as prey not predators because they are herbivores. They needed big ears so they could hear coming threats/predators.
2006-10-28 20:10:26 · answer #2 · answered by Anonymous · 2⤊ 0⤋
Both of the above answers are correct but there is another reason. large ears creat a lot of drag in water much more so than in air. Small ears are more aquadynamically efficient
2006-10-28 20:30:31 · answer #3 · answered by Scott L 5 · 0⤊ 0⤋
They live in water and they use sonar or something...
2006-10-29 06:34:59 · answer #4 · answered by Mike 4 · 0⤊ 1⤋