1. Castor canadensis   hyena   chimpanzee   beaver   armadillo   Hint Half-n-half Clue   2. Enhydra lutris   otter   chimpanzee   armadillo   porcupine   Half-n-half Clue   3. Acinocyx jubatus   impala   beaver   lynx   cheetah   Half-n-half Clue   4. Coendou prehensilis   impala   porcupine   lynx   chimpanzee   Half-n-half Clue   5. Pan troglodytes   cheetah   beaver   chimpanzee   hyena   Half-n-half Clue   6. Crocuta crocuta   hyena   otter   chimpanzee   lynx   Half-n-half Clue   7. Aepyceros melampus   armadillo   impala   porcupine   hyena   Half-n-half Clue