1ocean_exploration
Aug 29
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š The humpback whale feeds exclusively in the summer and lives on its fat reserves throughout the winter. It feeds mainly on small fish and krill: a small crustacean barely a few centimeters long! The humpback whale has no teeth. To feed, it absorbs water in quantity and then spits it out through its baleen, which acts as a sieve to filter its prey. An adult humpback whale consumes several tons of food per day!
Humpback whales have developed a very clever group hunting strategy! When they spot a school of fish, one of them dives and forms a net of bubbles around the school, releasing air through its blowhole. The other whales then pass under the tunnel of bubbles and push the fish towards the surface. Once the prey is trapped, they open their mouths wide and swallow them.
š³ La baleine aĢ bosse se nourrit exclusivement lāeĢteĢ et vit sur ses reĢserves de graisse pendant tout lāhiver. Elle se nourrit principalement de petits poissons et de krill, un petit crustaceĢ de quelques centimeĢtres ! La baleine aĢ bosse est deĢpourvue de dents. Pour sāalimenter, elle absorbe de lāeau en quantiteĢ puis la recrache aĢ travers ses fanons qui jouent le roĢle dāun tamis filtrant ses proies. Une baleine aĢ bosse adulte consomme plusieurs tonnes de nourriture par jour !
Les baleines aĢ bosse ont mis au point une technique de chasse en groupe treĢs astucieuse ! Quand elles repeĢrent un banc de poissons, lāune dāelles plonge et forme un filet de bulles autour du banc, en relaĢchant de lāair par son eĢvent. Les autres baleines passent alors sous le tunnel de bulles et repoussent les poissons vers la surface. Une fois les proies pieĢgeĢes, elles ouvrent grand leurs gueules et les engloutissent.
šøPhoto by @alexis.rosenfeld
@unesco @ioc_unesco @lacazaprod
#1ocean #unesco #exploration #expedition #marineconservation #oceanconservation #OceanDecade #saveourocean #nature #uwphotography #underwaterphotography #marinelife #humpbackwhale #whale
1ocean_exploration
Aug 29
42
6.44%
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