Feline's Lost A Life, 7 Letter Answer And Is Either A Mammal, Reptile Or Bird

[mackermike]

Feline's lost a life, 7 letter answer and is either a mammal, reptile or bird

[Mamyalynne]

Shame I thought it may have been - Octopus.

[elliemay1]

Octopus sounds correct

[Mamyalynne]

Not one of the categories given, that's all.

[elliemay1]

I know, but maybe the setter thought it was!

[mackermike]

thank you both, I will go with octopus although not in the listed groups. Maybe a setter error :)