A human skull is less than 1cm thick. A caiman/crocodile skull can be over 5cm thick. Jaguars kill crocodilians and large mammals like tapirs (weighing up to 300kg) by perforating the cranium or crushing/severing the cervical vertebrae, and they can easily go through turtle shells and armadillos. read more
Without a doubt, they Jaguar has enough power in it's jaws to bite through a skull. I just don't understand why they don't go for a more vulnerable area like other big cats do. read more