Why do male seahorses give birth to the babies?

Seahorses can change color, move their eyes independently of one another, and even have prehensile tails (like monkeys). The fact that male seahorses also get pregnant and give birth is sure to leave you in total awe of these fascinating fish!

While we celebrate all the scuba diving, freediving, and ocean-loving dads out there, we also want to give a big shout out to the most unique dads that call the underwater world home. In the entire animal kingdom, male seahorses (and their close relatives) are the only male animals that undergo pregnancy and give birth to offspring.

Although male seahorses carry the eggs, they don’t make them. After the male and female seahorses spend time courting, the female deposits her eggs inside the male’s pouch. The male then fertilizes the eggs inside the pouch. Instead of growing their babies inside a uterus like human moms do, seahorse dads carry their babies in a pouch. Their pouch provides oxygen and nutrients, as well as regulates temperature, blood flow, and salinity for the developing eggs.

Depending on the species, male seahorses typically carry their eggs for 2 -4 weeks. Then, they give birth to 100 – 1,000 babies at a time. That’s a lot of adorable, teeny tiny seahorses! Like human moms, seahorse dads give birth through energetically costly muscular contractions.

Credit : PADI

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What color is a hippo’s sweat?

The hippopotamus or hippo mystified ancient Greeks because it appeared to sweat blood. Although hippos do sweat a red liquid, it isn't blood. The animals secrete a sticky liquid that acts as a sunscreen and topical antibiotic.

Initially, hippo perspiration is colorless. As the viscous liquid polymerizes, it changes color to red and eventually brown. Droplets of perspiration resemble drops of blood, although blood would wash away in water, while hippo perspiration sticks to the animal's wet skin. This is because the hippo's "blood sweat" contains a high amount of mucous.

Yoko Saikawa and his research team at Kyoto Pharmaceutical University, Japan, identified non-benzenoid aromatic compounds as the orange and red pigment molecules. These compounds are acidic, conferring protection against infection. The red pigment, called "hipposudoric acid"; and the orange pigment, called "norhipposudoric acid", appear to be amino acid metabolites. Both pigments absorb ultraviolet radiation, while the red pigment also acts as an antibiotic.

Credit : ThoughtCo

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What is baby rabbit called?

Newborn hares, called leverets, are fully developed at birth—furred with open eyes—while newborn rabbits, called kittens or kits, are born undeveloped, with closed eyes, no fur, and an inability to regulate their own temperature, Stott said.

Before the 18th century, rabbits were called coneys. The term for young coneys was rabbits. However, that name began to take over in popularity. By the 18th century, rabbit was the more widely used name for these creatures.

It is believed that the term bunny is a leftover mispronunciation of coney. The name bunny was also a popular name used to refer to a young girl.

Another tale of the origin of how the word bunny exploded in popularity relates to the Easter holiday. The tale of the Easter bunny laying eggs for children was originally referred to as an Easter hare. However, it was felt that the name Easter hare was not appealing or cute enough, so it was changed to the Easter bunny.

Whichever is the true origin, it is undeniable that the term bunny is much more widely used when referring to baby rabbits than the word kitten. Rabbits are considered kittens for the first 9 months of their lives. After this, they are fully grown adults.

Credit : Simplemost 

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What color is a polar bear’s skin?

Polar bears have white fur so that they can camouflage into their environment. Their coat is so well camouflaged in Arctic environments that it can sometimes pass as a snow drift. Interestingly, the polar bear’s coat has no white pigment; in fact, a polar bear’s skin is black and its hairs are hollow. They have a thick layer of body fat, which keeps them warm while swimming, and a double-layered coat that insulates them from the cold Arctic air.

Polar bear paws are ideal for getting around in the Arctic.

They’re huge—as big as dinner plates—and measure up to 30 cm (11.81 in) across. This helps the bears walk on thin ice without falling through. 

The polar bear’s super-paws are also designed for swimming. The forepaws act like large paddles and their hind paws serve as rudders.

Black footpads on the bottom of each paw are covered by small, soft bumps known as papillae.

Papillae grip the ice and keep the bear from slipping. Tufts of fur between their toes and footpads help with warmth, as well.

Thick, curved, sharp, and strong—each measures more than 5 cm (1.97 in) long. Polar bears use their claws to catch and hold slippery seal prey and to gain traction on ice.

Credit : Polar Bears International

Picture Credit : Google

A butterfly uses which body part to taste food?

Butterflies don’t really have mouths, much less taste buds, to help them decide if food tastes good or bad. Instead, they use their feet!

To eat, a butterfly unwinds a long, skinny part of its body called a proboscis, and sucks up liquids like nectars and juices. It works for nutrients, but the proboscis does not have sensors to determine taste. Instead, those sensors are located on the back of the butterfly’s legs. The insect will step on its food to sense dissolving sugars.  Even more importantly, a female butterfly will use her feet to drum on a plant and “taste” its juices. This helps her decide if the leaf would be edible to a caterpillar, and therefore, if she has found a suitable place to lay eggs.

In butterflies, these chemoreceptors lie on the tarsus. Insect legs are subdivided into different segments, as the picture below shows. The tarsus is located distally, meaning “away from the body”.

Just as humans can taste the sweet in sugar and the bitterness of medicine, insects can sense different tastes too! They can sense sweet, bitter, sour and salty through their chemoreceptors.

This strategy is crucial for butterfly survival. In a review published in Insect Molecular Biology, the authors noted that multiple behavioral studies have shown that butterflies use taste to make many important choices. This informs not only what in their surroundings is food, but also guides them in choosing a mate, and deciding where to lay their eggs.

Credit : Science ABC

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