Planthers

The Planther of Mars acts like an Earth lion, and is also as dangerous as one! It is real fast and also has very sharp fangs that can shred its foes to pieces in no time. It's best to do it like hunters in Africa and shoot this unpleasant felow with a rifle from afar before it comes close enough to give you a taste of its dangerousness.

Lore
''Fast, agile and deadly, the planther is at the top of the plantimal food chain. Though it rarely attacks the larger herbivores, a hungry specimen of the breed can chase down a sextelleger (with some difficulty...). Planthers tend to be loners, sticking to the mountainous regions they love, but they move into the plains areas and travel in small prides during pollination season.''

- from "Mysteries of the Red Planet", Martian Dreams