Crossword puzzle clue "adaptable eater"

an omnivorous person or animal, one that feeds on both animal and vegetable food

a small African lizard with a prehensile tail and tongue, also CAMELEON, CHAMAELEON

CHAMELEON, a small African lizard with a prehensile tail and tongue, also CAMELEON, CHAMAELEON

ECOTYPE, a group of organisms which have adapted to a particular environment and so have become different from other groups within the species