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Spinner dolphins live in an open and loose social organization. [20] The spinner dolphins of Hawaii live in family groups, but also have associations with others beyond their groups. [5] Mothers and calves form strong social bonds. Spinner dolphins seem to have a promiscuous mating system, with individuals changing partners for up to some weeks.
When spinner dolphins impact the water the combination of centrifugal and vertical force upon these ectoparasites can be up to 700 times their own weight and so efficiently remove them. [16] Other theories suggest that cetaceans may porpoise in order to observe distant objects such as food by looking for visual cues, such as birds dive-bombing ...
Clymenes are fairly active dolphins. They do spin longitudinally when jumping clear of the water, but not with as much regularity and complexity as the spinner dolphin. They will also approach boats and ride bow waves. [15] Group sizes vary from just four up to around 150 individuals, [5] although about forty is typical. [15]
Nobody really knows why some do and some don’t but competition for food probably led to a new hunting strategy, McFee says. Dolphins at some locations in the world, McFee notes, stick their ...
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Spinner sharks spin on their long axis. ↑ A team of common bottlenose dolphins cooperate to make schooling fish jump in the air. In this vulnerable position the fish are easy prey for the dolphins.
A wheeled buffalo figurine—probably a children's toy—from Magna Graecia in archaic Greece [1]. Several organisms are capable of rolling locomotion. However, true wheels and propellers—despite their utility in human vehicles—do not play a significant role in the movement of living things (with the exception of the corkscrew-like flagella of many prokaryotes).