It's easy to understand why so many use the words "turtle" and "tortoise" interchangeably. They look similar with their characteristic bony shells and lipless expressions, and, in some cases, they ...

At first glance, turtles and tortoises seem almost interchangeable. Both carry a shell, move at an unhurried pace and belong to the same ancient reptile lineage that has existed for millions of years.

For a quarter century, Ms. Khalil ran a guesthouse and worked to protect endangered sea turtles who every summer lay their eggs on a stretch of beach near Tyre, Lebanon. By Ishani Desai The panel ...