The smallest turtle apparently is the Nama Padloper, Homopus bergeri, which is about 7-8 cm long when mature. They are thought to lay single-egg clutches.

An adult albino (or amelanistic) loggerhead was observed nesting in Australia in the 1970s.

There are annual turtle races in different parts of the world. For instance, there is one in North Dakota.

One species of turtle, the northern long-necked turtle of Australia (Chelodina rugosa), lays its eggs under water. Incubation begins only after the water recedes and eggs are no longer submerged.

A blind olive ridley sea turtle was observed nesting during an arribada in Ostional, Costa Rica, in the early 1980s.