A rare, ancient case of bone cancer has been found in a turtle ancestor
A 240-million-year-old fossil is the oldest known example of this disease in amniotes
![Pappochelys rosinae](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/02/020819_ac_tumor_feat.jpg?fit=860%2C460&ssl=1)
TRIASSIC TURTLE An extinct ancestor of modern turtles called Pappochelys rosinae (illustrated) had bone cancer, the oldest known case in an amniote, a group that includes mammals, birds and reptiles.
Brian Engh/dontmesswithdinosaurs.com