Erin Murton

Did you know that pigs have episodic memory?

That means they can remember specific events from their life! This implies a high level of intelligence in this species.

Pigs can do much more than what we think. They can feel emotions, form connections (both social and emotional), and even be helpful, fun companions to humans. There is so much more than the popular perception of 'rolling in the dirt' that everyone has. Learn more about it below!

Penguins are often thought of as small, black-and-white birds, but in reality these birds come in various sizes and colors.

The unique coloring of penguins helps them escape from the predators like leopard seals, sea lions, and orca whales. The black color blends into the dark ocean when seen from above, and when seen from bellow, the penguin's white belly blends with the color of snow and light sky.

Penguins come in various colors; for example, the crested penguins exhibit a crown of yellow feathers.

King and emperor penguins' neck is marked with orange and yellow color, luxuriant florescent yellow eyebrows adorn the heads of some species. These species are the Fiordland, Rockhopper, Royal, and Snares penguins.

Penguins, unlike most other birds, do not have hollow bones. Penguins have heavy bones, which counteracts their natural buoyancy, making them very quick swimmers. They can swim up to 15 mph (24.14 kph). Though flightless sea birds, penguins are expert swimmers.

Penguins dive on average 100 to 200 ft (30 to 60 m) underwater in search of food. Emperor penguins can dive impressively deep, making dives to 1,500 ft (460 m) occasionally. Penguins eat krill, squid and fish as their main diet.

These flightless birds are widely distributed in cooler waters from Africa to Australia and along coastlines in the Southern Hemisphere. As per the scientists, there are 17 to 19 varieties of penguins.

Penguins being in the ocean, drink salt water. The water's salt is taken out by a special gland in their bodies and pushed through special grooves in their bill; this process filters the saltwater taken by the penguins.