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It's true that sharks have a ridiculous sense of smell but that's not the whole story.
It's true that sharks have a ridiculous sense of smell but that's not the whole story. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in ...
No scientist can actually prove that they can smell blood. Actually according to a discovery channel show, the Mythbusters, they can't smell blood. —The preceding unsigned comment was added by 68.44.106.218 00:01, 7 January 2007 (UTC). Wrong, Sharks have an incredible sense of smell, and can detect extremely small amounts of blood in water.--
Having the ability to keep their warmth helps them as predators as well. Another group of sharks, known as the mackerel sharks are able to warm their blood. These mackerel sharks retain their blood by using a heat exchange system called rete mirabile. The body temperature of mackerel sharks can be up to 10 o higher than the surrounding water. [10]
Among all sharks, white sharks have the largest reported olfactory bulb, making up 18% of their brain mass. It is said great white sharks can sniff out a single drop of blood in 10 billion water ...
When a shark dies, the urea is broken down to ammonia by bacteria, causing the dead body to gradually smell strongly of ammonia. [36] [37] Sharks have adopted a different, efficient mechanism to conserve water, i.e., osmoregulation. They retain urea in their blood in relatively higher concentrations.
Greenland sharks have also been found with remains of moose, polar bear, horse, and reindeer (in one case an entire reindeer body) in their stomachs. [26] [27] [28] The Greenland shark is known to be a scavenger and is attracted by the smell of rotting meat in the water. The sharks have frequently been observed gathering around fishing boats. [26]
Avoid entering the water with an open wound if you are menstruating as sharks can often smell blood. ... lots of shiny jewellery can also help, as a lot of sharks are quite visual predators ...