Earth Cave diver explores a Mexican sinkhole in atmospheric photograph This claustrophobia-inducing image is taken from photographer Martin Broen's new book Light in the Underworld, a collection of shots from the Yucatán’s cenotes, or sinkholes RegularsFree
Life Exquisite fossils of Cretaceous shark solve mystery of how it hunted Six full-body fossils of Ptychodus sharks have been formally analysed for the first time, revealing that they were fast swimmers that preyed on shelled creatures NewsFree