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Is your cat left-handed or right-handed?


Blue whales tend to be right-handed

By Jen Christensen, CNN

CNN) Most blue whales tend to be "right-handed." When blue whales come across a large patch of krill, the tiny crustaceans that make up their main meal, they do side rolls, but when they go after the smaller krill patches closer to the surface, they do full barrel rolls, shooting straight up in the water.

With side rolls, the majority go right, suggesting that they're righties. But when the whales go up for surface krill and there is light, they do barrel rolls to the left. Scientists think they switch up their behavior when they go to the surface so they can keep their dominant eye on their prey.

Chimp and bonobo populations tend to show a right-handed preference, as do gorillas. Orangutans as a population do not seem to have a preference, although the individual animal uses a preferred hand.

Some kangaroo species tend to be lefties. In one study, horses showed a left eye preference, so they would be considered right-handed because the dominant eye corresponds with the opposite hand dominance.

Scientists bred several generations of mice that they noticed were more often using their left paws to get treats. The lefties' offspring was evenly split between righties and lefties. In that case, scientists concluded that the paw a mouse uses is purely chance.

And when it comes to cats, a 1991 study found that 40% were left-pawed, 50% were right-pawed, and 10% were, well, cats. Those animals were seemingly indifferent to one paw over the other. Another cat study found that females tend to be more right-pawed and male cats tended to be more left-pawed.

Studies in dogs showed a divide. Scientists say you can try this experiment at home by seeing which paw they more typically use to reach for a treat.

Handedness in an octopus sounds like a trick question, since they have eight arms, but scientists experimented anyway and found a 50-50 split between righties and lefties. Although all eight of their arms are capable of doing the same things, the animal tends to favor one arm over another when hunting or grabbing or when they are holding "hands" and romancing their mates. Scientists think that favorite tentacle typically corresponds with their dominant eye.

Scientists aren't entirely sure why there seems to be a tendency for a particular kind of handedness within a species, nor do they really know why some of us are lefties or vice versa. Some think it is about efficiency. Some think it helps in social species; when birds fly together, it's easier if they prefer to fly in the same direction.

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11/21/2017, 3:26 pm Link to this post PM Bellelettres
 
Noserose Profile
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Re: Is your cat left-handed or right-handed?


My cat is so lazy he doesn't walk much. He like to sleep on his left side when he's in front of the fireplace.

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"libido sciendi"..... the passion to know.
11/21/2017, 5:35 pm Link to this post PM Noserose
 
gopqed Profile
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Re: Is your cat left-handed or right-handed?


Our current cat is a righty, and our dog can affirm that she has a pretty good right hook. The male cat we had up until about three years ago was definitely a lefty.
11/22/2017, 2:53 am Link to this post PM gopqed Blog
 


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