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The recently extinct Steller's sea cow was the largest known sirenian to have lived, reaching lengths of 10 metres (33 feet) and weights of 5 to 10 tonnes (5.5 to 11.0 short tons). [ 2 ] Sirenians have a large, fusiform body which reduces drag through the water and heavy bones that act as ballast to counteract the buoyancy of their blubber .
A male California sea lion weighs on average about 300 kg (660 lb) and is about 2.4 m (8 ft) long, while the female sea lion weighs 100 kg (220 lb) and is 1.8 m (6 ft) long. The largest sea lions are Steller's sea lions , which can weigh 1,000 kg (2,200 lb) and grow to a length of 3.0 m (10 ft).
To the present, almost all have remained tropical (with the notable exception of Steller's Sea Cow), marine and angiosperm consumers. Sea cows are shallow divers with large lungs. They have heavy skeletons to help them stay submerged; the bones are pachyostotic (swollen) and osteosclerotic (dense), especially the ribs which are often found as ...
A sea lion sits up as a boat passes on the Sacramento River in Old Sacramento in 2023. ... sea lions have small flaps for outer ears while so-called “true” seals lack external ears, ...
The siren appeared in several illustrated manuscripts of the Physiologus and its successors called the bestiaries. The siren was depicted as a half-woman and half-fish mermaid in the 9th century Berne Physiologus, [25] as an early example, but continued to be illustrated with both bird-like parts (wings, clawed feet) and fish-like tail. [26]
It's called the 'mother-pup recognition sequence.' After feeding, the mom makes a loud trumpeting sound, and in response the pup will call back to her mom. ... Sea lions also use non-verbal sounds ...
A sea-lion, illustrated in A Complete Guide to Heraldry (1909). In heraldry, the term sea-lion (sometimes called a morse) [1] refers to a legendary creature that has the head and upper body of a lion, but with webbed forelimbs and a fish tail. [2] These occur most frequently as supporters, but also occur as crests and occasionally as charges. [1]
Hundreds of California sea lions have taken over San Carlos Beach in Monterey, California, prompting local officials to close the area to people. Caution tape has been put up but crowds are still ...