Minke whale points to evidence that the minke whale has fat deposits in their jaws intended for sound reception, much like Odontocetes. The brains of minke whales have around 12.8 billion neocortical neurons and 98.2 billion neocortical glia. The whale breathes three to five times at short intervals before 'deep-diving' for two to 20 minutes. Deep dives are preceded by a pronounced arching of the back. The maximum swimming speed of minkes has been estimated at . Both species undertake seasonal migration routes to the poles during spring and towards the tropics during fall and winter. Difference between the timing of the
Bucca (mythological creature) in Cornish tin mines, granting wishes in exchange for food (see knockers). Bucca (mythological creature) Bucca is a male sea-spirit in Cornish folklore - a merman- that inhabited mines and coastal communities as a hobgoblin during storms. The mythological creature is a type of water spirit likely related to the Púca from Irish and Welsh folklore and the female mari-morgans - a type of mermaid from Welsh and Breton mythology. Rev W. S. Lach-Szyrma, one 19th-century writer on Cornish antiquities, suggested the Bucca had originally been an ancient pagan deity of the sea such as Irish Nechtan or British Nodens,