Sperm whales and their mysterious vertical sleep

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Sperm whales and their mysterious vertical sleep

Sperm whales and their mysterious vertical sleep. Until a 2008 study documented the behavior of the sperm whales, no one knew they slept vertically. When sperm whales get tired, they take a deep breath, dive about 45 feet, and arrange themselves in perfectly leveled vertical patterns.

According to National Geographic, when sperm whales want to sleep for two or hours between breaths, they drop down to 45 feet of depth in flocks of five or six elements. French photographer and director Stephane Granzotto was documenting sperm whales in the Mediterranean for his photo book on creatures when he stumbled upon the strange behavior.

While captive sperm whales sleep with one eye open and half of their brain alert, there is evidence that they go into fuller, deeper sleep in the wild. We can also admire sperm whales thanks very rare shots by the Swiss photographer Franco Banfi, award-winning underwater photographer.

These extraordinary marine animals rest from 6 to 24 minutes, but only in 7% of cases their sleep can be defined as deep In the Caribbean Sea, Banfi was following a family of sperm whales off the Dominican Republic together with photojournalist Sabrina Belloni, when at one point the two found themselves in front of a real show of nature.

Sperm whales have thrown themselves into a deep sleep, remaining motionless and upright. The discovery that these cetaceans sleep like this is relatively recent, in fact it was only in 2008 that a team of biologists from the United Kingdom and Japan came across this habit.

Until then, it was thought that sperm whales slept like other cetaceans in a horizontal position and with one eye open so as not to let your guard down in front of predators.

A Malaysian tiger was found dead in a puddle at the zoo

Melur was its name and it was a 11 month old Malaysian tiger cub of Hulu Kelang's Negara Malaysia Zoo in Malaysia.

The cub of tiger drowned in the puddle of the exhibition area where she lived. But animal rights activists and associations are asking if the cub was really drowned, at least since the tragic news was made known. Because the puppy, would have died even last March even if only in the last few days, the story has been made public, however, fueling mysteries about the causes of the tiger's death.

Among the hypotheses, relaunched by The Rakyat Post which disseminated the image we publish, that of a virus, the CDV an RNA virus that belongs to the Morbillivirus genus of the Paramyxoviridae family which causes, for example, the disease of distemper in dogs.

An aggressive virus that can sometimes be fatal and that would have already been found in two wild tigers in July 2019. This hypothesis, which if confirmed, scares much more than a pool of water. Tigers are known to love water and are excellent swimmers.

So much so that, in nature, it is not at all rare to see them hunting their prey in the middle of ponds, along rivers and on the shores of lakes and ponds.