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Prehistoric Sharks
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@Apex Titan :
About #49: Interesting article you posted ! It reminds me how we stated that big dinosaurs (sauropods) were not cold-blooded animals. At first, we thought that they lived into the swamps, lakes and so on, beause they were too heavy to live on the ground. Then we objected that their aerodynamic body wasn't compatible for a way of life like this (very long neck and so on, they didn't look like hippos for example), thus we deduced they were endothermic because of their gigantic size and lived on eath like the extant big herds of herbivors in Africa... A 360 degrees process of reflexion and a final opposite conclusion. Now, I'm just making one assumption. I imagine the Megalodon being endothermic too. An endothermic 65 tons predator is indeed constantly searching for big preys and have the metabolism to travel through the oceans, because its needs for food are much more higher than an ectothermic one. In short it was always feeling hungry. But I think, for having ruled over 20 millions years through the oceans, it should have been very scarce - otherwise it would have all exterminated. How ? Perhaps because of a very high level of mortality. Perhaps the mother megalodon slaughtered the whole offspring except one or two lucky ones fastly becoming almost immune to predation... If you say a whole pod of leviathans was indeed capable to defeat a megalodon, it would have not happened very often. Not enough to be considered as being a regular predation. |
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