हाथी के शरीर के कौन से अंग मुख्य रूप से उसे अपने दुश्मनों से बचाव करने और लड़ने में मदद करते हैं?

Which specific morphological adaptation does the Arctic Fox utilize to maintain effective camouflage as seasons transition from snowy winters to tundra summers?

Given below are some adaptive features of animals: (i) Layer of fat under the skin (ii) Long, curved and sharp claws (iii) Slippery body (iv) Thick white fur Which of these are adaptive features of a polar bear?