WHICH ANIMAL HAS THE LARGEST BRAIN IN THE WORLD?

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Contrary to the belief of many men, humans do not possess the largest brain in the world, and while the average sized brain of a dolphin is indeed bigger than our own it is still 'small potatoes' when compared to the worlds largest.

Brain size tends to vary according to body size, so you would think that the worlds biggest land animal - the elephant, would be in with a chance of the title. Well compared to a human brain that weighs around 1.3 to 1.5 kg (3 lbs)it does well weighing in at just over 5 kg (11 lbs). The previously mentioned dolphin's brain will vary between 1.5 to 1.7 kg.

However, the worlds largest brain actually belongs to a sea mammal - more specifically, the amazing sperm whale.

The sperm whale doesn't just break records with regards to its brain size. A mature male sperm whale can grow to 20.5 metres (67 ft) long, making it the largest living toothed animal in the world.

For large males, the head can represent up to one-third of the animal's length.

Sperm whales feed primarily on squid but to some extent on fish, diving as deep as 3 kilometres (9,800 ft), which also makes it the deepest diving mammal.

Even when communication to others, the sperm whale doesn't do things by half as the sperm whale's clicking vocalisation is the loudest sound produced by any animal.

The sperm whale can live for more than 70 years, and has a diet which includes giant squid and colossal squid.

This just reinforces what all old wives already believe, that a diet of sea food is indeed good for the brain!




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Based on a article from http://en.wikipedia.org/wiki/Sperm_Whale
Photos care of http://jameselassiter.blogspot.com/2011_11_01_archive.html and http://news.nationalgeographic.com/news/2009/10/photogalleries/giant-squid-sperm-whale-pictures/