Dolphins can form sound pictures of objects based on the difference between the density of the object and the density of the surrounding water. The largest brain in the world belongs to the sperm whale. Weighing some 9,000 grams it is six to seven times larger than the human brain. A cat of many names, the puma is also known as the cougar, or mountain lion. All black leopards, often called 'Black Panthers', are born in the same litter as normally marked cats and carry the rosette markings, although these are masked by the darkness of the fur.
Whales are the longest living animal on earth.
Some whales have lived over 200 years. The color of the fur varies from slate gray, through yellow buff to light reddish brown. The size and coloration of the cat varies greatly across its range, which stretches from the south west of Canada down the western U.S., and throughout most western parts of South America. The term Black Panther is often used in connection with large black cats - however there is no distinct species of wild cat called a Black Panther. Black Panther has been used to describe any large black coated cat.