https://www.scientificeuropean.co.uk/sciences/biology/megatooth-sharks-thermophysiology-explains-both-its-evolution-and-extinction/

Extinct gigantic megatooth sharks were at the top of the marine food web once. Their evolution to gigantic sizes and their extinction are not well understood. A recent study analysed isotopes from thefossil teeth and found that these sharks developed endothermic thermoregulation and evolved to gigantic sizes but the high metabolic costs and bioenergetic demands could not be sustained longer

#Extinction #Megalodon #endothermic #Sharks #MegatoothSharks