For sharks to keep receiving oxygen, water needs to be kept in constant motion over their gills. This indirectly means that they will need to be in a state of constant motion. But does this mean that sharks must never stop moving, and by implication will never sleep?

Will a shark die if it stops moving?

This may be true for some sharks, while it’s not so for some sharks. Some sharks need to remain in motion to allow water to cover their gills. However, some sharks have spiracles. This structure allows them to breathe while lying down at the bottom of the ocean. It allows them to breathe well while in a state of rest.

Do they sleep?

Sharks that need to be in motion to make breathing possible have their active periods and their resting period. However, they do not sleep as we do, but they seem to be sleeping while in motion. At this moment, a portion of their brain becomes less active which fulfils the portion of the dictionary’s description of sleep- “suspending consciousness.”

Research shows that sharks do not use their brains for movement, but their spinal cords coordinate the whole process of swimming. This means that they can do swimming while being unconscious.

So, sharks actually fulfill the dictionary’s description of what it means to sleep, except that they don’t sleep as human do.

The post Do Sharks Sleep? appeared first on Our Funny Little Site.

But why do koalas do this? Mainly, it’s simply because they love sleeping. Also, they require a long sleep in order to digest the food they eat. Since they are herbivores, they don’t take in a lot of calories with their food, so it’s a good idea to conserve the energy. Sleeping for a long time lowers koalas’ metabolism, so they are able to maintain the desired energy levels for a longer time.

The post Why do Koalas Sleep More Than 20 Hours a Day? appeared first on Our Funny Little Site.

These little creatures actually hold hands while they sleep so they won’t drift apart! This is the most common between mothers and their babies. They also find ways to wake up at the same spot where they fell asleep. The most common one is wrapping themselves in kelp which grows from the sea floor so it’s perfect as an anchor.

The post Did You Know This Cute Fact About Sea Otters? appeared first on Our Funny Little Site.

For sharks to keep receiving oxygen, water needs to be kept in constant motion over their gills. This indirectly means that they will need to be in a state of constant motion. But does this mean that sharks must never stop moving, and by implication will never sleep?

Will a shark die if it stops moving?

This may be true for some sharks, while it’s not so for some sharks. Some sharks need to remain in motion to allow water to cover their gills. However, some sharks have spiracles. This structure allows them to breathe while lying down at the bottom of the ocean. It allows them to breathe well while in a state of rest.

Do they sleep?

Sharks that need to be in motion to make breathing possible have their active periods and their resting period. However, they do not sleep as we do, but they seem to be sleeping while in motion. At this moment, a portion of their brain becomes less active which fulfils the portion of the dictionary’s description of sleep- “suspending consciousness.”

Research shows that sharks do not use their brains for movement, but their spinal cords coordinate the whole process of swimming. This means that they can do swimming while being unconscious.

So, sharks actually fulfill the dictionary’s description of what it means to sleep, except that they don’t sleep as human do.

The post Do Sharks Sleep? appeared first on Our Funny Little Site.

But why do koalas do this? Mainly, it’s simply because they love sleeping. Also, they require a long sleep in order to digest the food they eat. Since they are herbivores, they don’t take in a lot of calories with their food, so it’s a good idea to conserve the energy. Sleeping for a long time lowers koalas’ metabolism, so they are able to maintain the desired energy levels for a longer time.

The post Why do Koalas Sleep More Than 20 Hours a Day? appeared first on Our Funny Little Site.

These little creatures actually hold hands while they sleep so they won’t drift apart! This is the most common between mothers and their babies. They also find ways to wake up at the same spot where they fell asleep. The most common one is wrapping themselves in kelp which grows from the sea floor so it’s perfect as an anchor.

The post Did You Know This Cute Fact About Sea Otters? appeared first on Our Funny Little Site.