Whales range in size from the 2.6 metres (8.5 ft) and 135 kilograms (298 lb) dwarf sperm whale to the 29.9 metres (98 ft) and 190 … Their lifespan varies, with species like the Killer whale living for 29 years, whereas the Humpback whale may thrive for over 50 years. … Whale, any of the larger species of aquatic mammals belonging to the order Cetacea. Whales are the heaviest known … The blue whale, a baleen whale, is the world’s largest animal.

Understanding the Context

The list of whale species below contains information on … The largest whale species in the world is the blue whale (Balaenoptera musculus), which is also the largest animal to … Whales play a crucial role in the health of hte marine environment. Discover WWF’s efforts to protect endangered and vulnerable … Blue whale, a species of baleen whale, a cetacean, that is the most massive animal ever to have lived. Weighing … The blue whale is the largest mammal in the world. A blue whale calf weighs two tons (1,814 kilograms) at birth and gains an extra … This Whale Week, explore whale science and conservation through the features and videos below.

Key Insights

Follow along on our … Molecular tests on a 21 m (70 ft) pregnant female whale caught off Iceland in 1986 found that it had a blue whale mother and a fin …