And why do they grow?
In: Biology
For a range of reasons:
* **Grip** – for a lot of animals they are incredibly useful for gripping items – whether that’s a piece of food or something that the animal is climbing up or trying to stay holding on to
* **Attack/defence** – hard, sharp or strong nails can be a pretty formidable weapon both offensively and defensively for animals, and can cause damage to other animals
* **Protection** – your fingers/animals paws are pretty important parts of their body, nails are a form of protection against the hardships of life and just make hands/paws a bit more resilient than being soft skin everywhere.
As for why they grow – they grow because in normal usage in the wild nails would become worn/ground and or damaged and so an animal that replenishes their nails has better survival chances than one whose nails are ‘one and done’.
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