Reproductive Adaptations in Penguins

In the US, the image of a normal family includes mothers, fathers, five children, dogs, and of course white fences. However, for many years this image has begun to disappear. To be honest, in recent years there are no ordinary families. Our culture is increasingly supporting our adoption, divorce, racial relations and even homosexual relations. Despite this progress of equality things are not as idyllic as they appear. Acts that do not appear in words very much, such as prostitution, domestic violence, child abuse, rape, etc, are becoming very common.

According to researchers, the oldest penguin species fossil is Waimanu Manneringi or Waimanu Penguin. Wimanu Penguin lived in New Zealand during the Xiaoceng shrine 62 million years ago. These penguins are not adapted for underwater swimming like modern penguins, but they can not swim and can not fly. They are short, they adapt to swim in the water, and swim with their feet. Besides Wimanu 's penguin fossils, a Peruvian fossil was discovered from Peru and the scientific analysis of Peru' s fossils showed that penguins had lived about 42 million years ago.

Swimming is a place where penguins are good at. Penguin's clumsy cockroach looks interesting on land, but this is because they are swimming. Penguins can swim deep into depth and distance by adaptive magician, a combination of a torpedo-shaped body and a powerful flipper. Their feet and feet are placed far from the body to help the squats on land, but in the water they act as a streamlined rudder to minimize the drag. On the water, the penguins can almost paddle like ducks, but under the waves the penguins are faster than the Olympic swimmers. The fastest emperor penguin can hurry up to 9 mph (14 km / h), but likes a stable 7 mph. Most middle-sized penguins swim at 5 mph (8 km / h), the smallest penguins, small penguins and walk at 1 mph (1.5 km / h). Travel penguins usually keep the water level within 3 to 6.5 feet (1 to 2 meters) using swimming techniques called dolphins.

Scientists have recently discovered that emperor penguins are particularly comfortable for aquatic creatures. It is streamlined and moves more fluidly than Olympic swimmers. Emperor penguins are suitable irons - they not only survive the cold winter of Antarctica but also breed and fluffy chicks in the middle of them.

Penguins are very suitable for aquatic life. Their remaining wings are finished and they are useless for airborne flight. But in the water, penguins are very agile. Penguin swimming is very similar to airborne bird flight. Save air layer of smooth feathers to ensure buoyancy. The air layer also helps to isolate birds in cold water. On land, penguins keep the balance upright using tails and feathers. All penguins are not camouflaged camouflaged - they have wings with a black back and a white front. Carnivores (such as killer whales and leopard seals) looking up from the bottom are difficult to distinguish between the abdomen of the white penguin and the reflected water surface. The black feathers behind are hiding from above