Deep dives are preceded by a pronounced arching of the back. The whale breathes three to five times at short intervals before 'deep-diving' for two to 20 minutes. Note that whale calls have been sped up to 10x their original speed. Behavior Multimedia relating to the minke whale, The brains of minke whales have around 12.8 billion neocortical neurons and 98.2 billion neocortical glia. However, magnetic resonance imaging points to evidence that the minke whale has fat deposits in their jaws intended for sound reception, much like Odontocetes. The presence of the bacteria suggests minke whales rely on microbial digestion to extract nutrients provided by their food.Īs with most Mysticetes, the auditory system for the minke whale is not well understood. Minke whales have a digestive system composed of four compartments with a high density of anaerobic bacteria throughout. Minke whales typically live for 30–50 years in some cases they may live for up to 60 years. Most of the length of the back, including dorsal fin and blowholes, appears at once when the whale surfaces to breathe. Minke whales have between 240 and 360 baleen plates on each side of their mouths. The body is usually black or dark-gray above and white underneath. Common minke whales (Northern Hemisphere variety) are distinguished from other whales by a white band on each flipper. The minke whale is a black/gray/purple color. Both sexes typically weigh 4 - 5 t at sexual maturity, and the maximum weight may be as much as 10 t. Reported maximum lengths vary from 9.1 to 10.7 m for females and 8.8 to 9.8 m for males. Upon reaching sexual maturity (6–8 years of age), males measure an average of 6.9 m and females 8 m in length, respectively. The minke whales are the second smallest baleen whale only the pygmy right whale is smaller. In addition, at least two wild hybrids between a common minke whale and an Antarctic minke whale have been confirmed. On at least one occasion, an Antarctic minke whale has been confirmed migrating to the Arctic. scammoni (Scammon's minke whale) and a further taxonomically unnamed subspecies found in the Southern Hemisphere, the dwarf minke whale (first described by Best as "Type 3", 1985). Writing in his 1998 classification, Rice recognized two of the subspecies of the common minke whale - B. All minke whales are part of the rorquals, a family that includes the humpback whale, the fin whale, the Bryde's whale, the sei whale and the blue whale. Taxonomists further categorize the common minke whale into two or three subspecies the North Atlantic minke whale, the North Pacific minke whale and dwarf minke whale.
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