Maria Duran

Hi all, 

Can someone tell me:

- Do frogs shed seasonally? Is it normal to almost totally lose them so that they can grow renewed again or not?

- What's the reason for a frog not having central sulcus? The horse I take care of was unshoed in the hinds about 3 months ago. The frogs have developed quite wide inmediately but are painfully soft and whithout central sulcus both hinds the same. I had never seen that. The frogs are totally flat.
What's the cause and is there something to be done?

Thank you very much!

María Durán
Madrid,  Spain 

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