Why do animals that live in cold climates generally have more polyunsaturated fatty acid residues in their fats than do animals that live in warmer climates?
(more polyunsaturated fatty acid residues in their fats; do; animals that live in warmer climates) (animals; live; L:in warmer climates)
more polyunsaturated fatty acid residues in their fats animals
do live
animals that live in warmer climates
L:in warmer climates