1-Blue Whale-By pure brute strength the Blue Whale is the strongest animal in the world. Its size is amazing and a flick of its tail can send a boat flying through the air. 2-African Elephant-They are the strongest land mammals on the earth. With just their trunks they can lift objects that weigh up to 600 pounds. 3-Saltwater Crocodile-Their jaws can exert an amazing 3,700 pounds per square inch (psi) of bite force. 4-Leafcutter Ant-They are one of the strongest animals pound for pound.