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Great white shark (Carcharodon carcharias)
Great white shark (Carcharodon carcharias)
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Great white shark (Carcharodon carcharias)
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 (08-05-2021, 08:19 PM)epaiva Wrote: Incredible dentition of big Great White Shark Great pictures. White sharks have the most devastating weaponry in the entire animal kingdom. A never ending supply of serrated knives!  
Credit to @jalilnajafov
 *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author
 (01-21-2022, 02:09 AM)epaiva Wrote: Credit to @jalilnajafov Logic answer: It was bitten when it was much smaller and kept the scar. Popular belive: It was a giant white shark or a surviver megalodon that live in the deeps and that eat sperm whales and that is black like a submarine and bla bla bla bla...... People surprise me about how fast they beliebe this stories. 
Orcas have been attacking the Great White sharks for several years off the South Africa coasts. At least, according this french account, ten or so big White Sharks have been killed by orcas operating in pack, like wolves, to such a point that the marine ecosystem is greatly modified (sea lions and penguins are proliferating). The Great White sharks seem to have moved toward the Mozambic coasts. And the tourists coming to see grat white sharks in a cage into the water are very disappointed.
Orcas seemed to be VERY aggressiv against white sharks. Is it a new phenomenon ? All the retrieved white sharks' corpses had no more liver. French account for those who can understand... " Le #requin blanc fait son retour au large des côtes d’Afrique du Sud. Considéré comme un redoutable prédateur et dominant la chaîne alimentaire, il est devenu la cible des orques, qui désormais troublent l’écosystème marin. Depuis quelques années, l'#orque, l'un des plus grands prédateurs marins au monde, semble cibler systématiquement les requins blancs, au large de l'Afrique du Sud. C'est la théorie d'Alison Towner, biologiste et spécialiste des grands requins blancs. "Grâce aux nécropsies, on a constaté que les requins n'avaient plus de foie, et qu'ils avaient des traces de morsures d'orques", explique-t-elle. Le problème ? Les requins blancs se situent tout en haut de la chaîne alimentaire. Leur disparition entraîne des bouleversements en cascade : trop d'otaries, menace des pingouins… "En fait, tout l'écosystème est déséquilibré", observe Alison Towner. Un impact sur le tourisme Dave Hurwitz et Sasha Dines, biologistes marins, sont les premiers à avoir photographié des orques dans la baie très proche des côtes. Ils en revoient depuis régulièrement, et ont aussi été témoins d'attaques. Les scientifiques ne comprennent pas pourquoi les orques ciblent les grands requins blancs avec une telle agressivité. L'absence de requins blancs dans la région a également un impact sur le tourisme, puisque des milliers de visiteurs viennent chaque année afin d'observer les prédateurs au plus près. Aujourd'hui, les plongeurs ne voient plus de requins blancs. Dans la région, l'absence prolongée de grands requins blancs est un événement sans précédent, de mémoire d'habitants. Extrait du journal de 20H de France2 du 14/10/2022 " 
Living with White Sharks - Gregory Skomal
New Insights into the Ecology of the White Shark in the North Atlantic - Gregory Skomal   *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author Quote:Photos of the heaviest White Shark ever recorded at 2500 kg captured on December 8, 1992 off Cananéia in São Paulo in Brazil Quote:  *This image is copyright of its original author  *This image is copyright of its original author Quote:5.50 m and 1500 kg, 17 April 1987, Filfla Island, Malta  *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author Quote:The Longest White Shark Record - 5.97 m and 1508 kg, 22 March 1984, Ledge Point, Australia  *This image is copyright of its original author  *This image is copyright of its original author Quote:Vic Hislop Record 5.50 to 5.80 m and 2000 kg, 5 November 1987, Phillip Island, Victoria, Austrália  *This image is copyright of its original author  *This image is copyright of its original author Quote:The largest White Shark from South Africa - 5.9 m and 1600 kg ,17 January 1987, Gansbaai  *This image is copyright of its original author Quote:Real size the Coijmar Mosnster - 5 m, June 1945, Cojimar, Cuba  *This image is copyright of its original author 5.8 to 6 m, Seven Star Bay, Taiwan, 14 May 1997
 *This image is copyright of its original author Quote:5.87 m and 2000 kg, 26 February 2004, Gabes Gulf, Tunisie |
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