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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Rameshwaram harbour
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Turtle-y nice day for a swim
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Þorrablót, Icelandic midwinter festival
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West Cornwall Covered Bridge, Connecticut, USA
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Night outside the museum
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A symbol of peace
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Colourful houses of Las Palmas de Gran Canaria, Spain
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Here we go!
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Telangana Day
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Lake Tyrrell, Victoria, Australia
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Fisgard Lighthouse, British Columbia, Canada
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Polar bear cub, Churchill, Manitoba, Canada
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Cherry blossoms in Shanghai, China
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Traditional red fishermens cabins, Reine, Norway
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A gorge-ous place to drop in
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A sacred water tank in Hampi
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103 years of Zion
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Dare to tread through the fairy flower?
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The beauty that lies below
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Cascade in the City of Waterfalls
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European river otter
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Wheatear, Peak District National Park, England
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Butterfly Beach in Canacona, South Goa
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Kalalau Beach on the Nā Pali Coast, Hawaii, United States
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See-through cephalopod
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Oktoberfest begins!
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Murudeshwara Temple, Murdeshwar, Karnataka
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Female pyrrhuloxia in Texas, USA
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Asteroid Day
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Can you name these pretty flowers?
Bing Wallpaper Gallery

