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Towner said: “The orcas are targeting subadult great white sharks, which due to their slow growth and late life history maturation strategy may have further impacts on an already vulnerable shark population. While these may have partial impacts, they are likely not the only factor that contributed to such a sudden, localized population decline from 2017. Other explanations for the region’s decline in great white sharks include shark capture, a reduction in prey due to fishing, or an increase in sea surface temperature. The distribution of killer whales may indicate that a decline in prey populations, including fish and sharks, is causing changes in their distribution pattern. Gansbaai was once a world famous spot to see the legendary Great White, with tourists around the world visiting and participating in cage diving. “These dynamics can also determine the interactions between competitors or the predator-prey relationship within the guild.” “The research is particularly important because by determining how large marine predators respond to risk, we can understand the dynamics of coexistence with other predator communities,” Towner said. Many of the shark carcasses washed up without the livers, hearts, or other injuries characteristic of the orca pair. Towner was also involved with a researcher last month examining the large white carcasses from 2017 off the coast of Gansbaai. However, they have fallen victim to orcas themselves – and are on the retreat.
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They were drawn to the region by what is known as Seal Island, a rock that is home to a huge colony of seals. Great Whites visited the area between June and October each year as part of their annual winter hunting season. Scientists speculate that this behavior may be behind the disappearance of great white sharks from the waters of False Bay off the coast of Cape Town.
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Scientists have found evidence that they slash open the sharks and eat their fatty liver. Damage due to wear and tear will be repaired at a reasonable charge.Orcas are the great white’s only natural predators. If you are not satisfied with one of our products at the time you receive it, or if one of our products does not perform to your satisfaction, our Ironclad Guarantee allows you to return it for a replacement or refund at no charge. We do not set a time limit on returns, though we ask that returns for fit or color be made in a timely manner and that items be kept in new condition with tags attached. We accept both current season and sale items for return for a flat-rate fee of C$19. If you have any questions about your order, please contact our friendly Customer Service team and we'll be glad to help. Please keep in mind that we get backlogged during sales or the holiday season and it could take longer. Orders are shipped within 1-2 business days and arrive within 3 business days (up to 5 business days for remote addresses).