There are two basic types of lasers used for cosmetic purposes: ablative and nonablative. Ablative lasers actually vaporize the top layers of damaged skin, while nonablative lasers work deeper in the skin without removing or otherwise damaging the top layers.
1 Adults average 3 m (9.8ft.) in length. 2  Males average 3.4 to 4.6 m (11.2-15.1 ft.) and weigh about 1,500 kg (3,307 lb.). 3  Females average 3 to 4 m (9.8 to 13.1 ft.) and weigh about 1,360 kg (2,998 lb.).  Beluga whales reach full size at about 10 years.
musculus. Blue whales are the largest baleen whale species--in fact they are the largest animal in the world. Blue whales can grow to be about 100 feet (30.5 meters) in length and may weigh around 160 tons. They are mottled bluish gray, with broad flat heads and a small dorsal fin located in the last forth of the body.