no not all of them
They are being protected by people. A community group working for the penguins is an example.
Yes, in most countries it is illegal to sell wild penguins. They are considered to be exotic animals, which in most cases are protected.
they walk on top of their mother and fathers feet. That way the parents protect them.
Penguins huddle together, and do the best taking turns to move to the center of the circle where they are best protected. That is all they can do, but penguins are pretty sturdy animals!
Penguins are mostly not hunted for food or commercial purposes. However, some species of penguins face threats from human activities such as habitat destruction, oil spills, and climate change, which can impact their populations. Overall, penguins are more commonly studied, observed, and protected in their natural habitats.
Currently, long term conservation actions are aimed at protecting the breeding grounds of the penguins. For example, Heard and McDonald Islands are protected as a World Heritage Site. By penguin sentinels
Their skin is oily, I suppose it's so it can keep their skin healthy and protected when they're in the water. I might be wrong.
It depends on what country are you killing a penguin in. In some countries it's legal and in some it's not.
Female penguins have ovaries and lay eggs. Male penguins have testes inside the body and excrete sperm through, basically, a well-protected hole. Males essentially press themselves against females who are lying down and transfers the sperm. They don't actually have sex.
Penguins are a protected species and therefore illegal to won as pets. It would be very difficult to provide a proper climate for a penguin to live in.
Penguins have a dense layer of feathers that trap air close to their bodies, providing insulation to keep them warm in cold environments. The fluffy appearance comes from the structure and arrangement of their feathers, which helps them regulate their body temperature and stay protected in their icy habitats.