iHerp Australia Issue 2 | Page 27

Turtle Trivia: Since first being described in 1758, the Loggerhead Turtle has been assigned more than 30 different scientific names! Loggerheads are capable of naturally hybridizing with several other species of sea turtles. An assemblage of turtles is called a flotilla. Out of water, marine turtles appear to ‘cry’ due to the activity of highly modified lachrymal (or lachrimal) glands, which excrete a concentrated salt solut ion, thereby allowing the turtles to drink seawater and consume marine plants and animals that contain a high salt concentration. Magnetite is a naturally-occurring iron oxide and has the strongest magnetic properties of any mineral. Magnetite crystals have been discovered in the brains of marine turtles and this is doubtless instrumental in their ability to navigate by magnetic compass..