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This is an accepted version of this page This is the latest accepted revision, reviewed on 13 December 2024. Large baleen whale species Humpback whale Temporal range: 7.2–0 Ma Pre๊ ๊ O S D C P T J K Pg N Late Miocene – Recent Size compared to an average human Conservation status Least Concern (IUCN 3.1) CITES Appendix I (CITES) Scientific classification Domain: Eukaryota Kingdom ...
The transition from teeth to baleen is proposed to have occurred stepwise, from teeth to a hybrid to baleen. It is known that modern mysticetes have teeth initially and then develop baleen plate germs in utero , but lose their dentition and have only baleen during their juvenile years and adulthood.
Unlike human teeth, which are composed mostly of enamel on the portion of the tooth outside of the gum, whale teeth have cementum outside the gum. Only in larger whales, where the cementum is worn away on the tip of the tooth, does enamel show. [ 17 ]
Humpback whales live in all oceans around the world. They travel long distances every year and have one of the longest migrations of any mammal, swimming from tropical breeding grounds to feeding ...
A male humpback whale has made an extraordinary journey from South America to Africa — traveling more than 13,046 kilometers (8,106 miles) — the longest migration recorded for a single whale ...
A humpback whale has stunned scientists with a journey that spanned three oceans and more than 8,000 miles, setting the record for the longest known migration between breeding grounds.
Female beaked whales' teeth are hidden in the gums and are not visible, and most male beaked whales have only two short tusks. Narwhals have vestigial teeth other than their tusk, which is present on males and 15% of females and has millions of nerves to sense water temperature, pressure and salinity.
“Humpback whales eat small fish and krill, NOT seals. While they have very large mouths, their throats are roughly the size of a grapefruit, ...