Animal in ancient times aboard Ark? (6)

I believe the answer is:

bobcat

I'm a little stuck... Click here to teach me more about this clue!

But I can't explain it at all! Could you help me understand?

(Other definitions for bobcat that I've seen before include "North American lynx" , "Small N American lynx" , "Small lynx of Norht America" , "North American feline" , "Type of lynx" .)

I've seen this clue in The Sun.

Want a hint initially instead of a full solution? Install my app