What is penguin skeleton?

As an AI language model, my database does not have images to describe but I can provide some factual information regarding penguin skeletons.

Penguin skeletons are adapted for their aquatic lifestyle. They have a streamlined body shape with flattened and fused wings that function as flippers, helping them swim through water. The bones of their wings are modified into flippers with a reduced number of phalanges, the finger bones. The legs of penguins are set far back on their body, giving them a unique waddling gait. Their bones are dense and strong to help them withstand the pressure and buoyancy of water.

Penguins also have a unique adaptation in their skeleton for their ability to dive and hunt underwater. Their ribcage is fused to increase their body's rigidity and to provide a more efficient swimming motion. This rigidity in the ribcage also increases their buoyancy, allowing them to stay underwater for prolonged periods. They also have special bony plates on their beak that aid them in catching fish.

Overall, penguin skeletons are specially adapted to their unique environment and lifestyle, allowing them to survive and thrive in the harsh conditions of the polar regions.