Ahoy there, giants of the sea! The planet"s 92 whale species are split between baleen whales and toothed whales. Baleen whales use bristle-like mouth parts to filter krill from the water. The sperm whales pictured here, like the other 76 toothed species, use cone-shaped teeth to attack their prey. Unlike baleen whales, they hunt and navigate using echolocation, a method that uses sound to detect the things around them. Sperm whales also happen to have the largest brain of any animal on Earth! A whale"s large brain-to-body mass ratio means that their intelligence is no fluke.
Sperm whale pod surfacing
Today in History
More Desktop Wallpapers:
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Racing through the five boroughs
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World Water Day
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Diwali
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Samuel Beckett Bridge, Dublin, Ireland
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Martyrs’ Day
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Heaven meets Earth!
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Point Reyes National Seashore, California, United States
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Spring equinox
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Purple bliss as far as the eye can see
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Scotts Bluff National Monument, Nebraska, United States
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Saving and celebrating honey bees
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What can you see from this tower?
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Hangin around
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In the spotlight
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Rebels of the owl world
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International Archaeology Day
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Khao Sok National Park in Thailand
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Porto Flavia, Sulcis-Iglesiente, Sardinia, Italy
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Trunks packed for road
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Puerto de la Cruz, Tenerife, Spain
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Ardez village, Graubunden, Switzerland
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How can we help at-risk animals?
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Happy Welsh New Year!
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Centraal Station, Antwerp, Belgium
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European fallow deer in England
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Spotted eagle rays
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Floating fruit market, Kaptai Lake, Rangamati, Bangladesh
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Where history comes alive
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Grey seal pup
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Hang Sơn Đoòng, Phong Nha-Kẻ Bàng National Park, Vietnam
Bing Wallpaper Gallery

