The Frog with Hidden Claws

The video explores the unique retractable claws of the hairy frog, also known as the Wolverine frog. Unlike typical claws made of keratin, these are made of bone and pierce through the skin when the frog feels threatened. This self-injury is a defense mechanism, but the process of retraction and healing remains largely unknown. Researchers have studied preserved specimens to understand this mechanism, but many questions remain unanswered. The hairy frog's claw structure is unique, with no other known animal having a similar feature, except for a newt with bony ribs that pierce its skin.

What challenges do researchers face in studying the retraction of the hairy frog's claws?

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Why is the hairy frog considered unique in the animal kingdom regarding its claws?

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