Have you ever wondered how tortoises lay eggs? For many temperate species, such as Mediterranean and North American tortoises ...

The earliest synapsids laid eggs, much like today’s reptiles and birds. Over countless generations, some synapsids started developing characteristics that would set mammals apart—like more ...

An ichthyosaur preserved beneath a Chilean glacier is helping scientists understand the extinct animals and the world around them as a supercontinent broke up.

Among reptiles, some groups, such as turtles and crocodilians, only lay eggs; they are never livebearers. Most snakes and lizards also lay eggs, but around 20% are livebearers.

Of more than 11,000 kinds of reptiles, all turtles and crocodilians lay eggs, as do the 10,000 recognized species of birds (some ornithologists suggest 20,000). More than 80 percent of lizards and ...

Why do snakes flick their tongues? Can snakes smell fear? Here are 10 amazing facts about rattlesnakes, flying snakes and ...

Sea turtle egg-laying season is about to begin, and several South Florida sites are offering nighttime walks to see the enormous creatures come in from the ocean, lay their eggs on the beach and he… ...

Most reptiles lay eggs, but some reptiles such as skinks give birth to live young. Most reptiles are carnivores and eat meat. Turtles and tortoises are mostly herbivores.

The earliest reptiles, ... However, a fresh study of 51 fossil species and 29 living species which could be categorized as oviparous (laying hard or soft-shelled eggs) ...

Eggs have been laid on land by birds, reptiles, ... or variants of the element strontium in the beads—these vary depending on where the ostriches would have fed before laying the eggs.

Egg-laying species: Both groups reproduce by laying eggs, though the conditions and environments for egg development differ—amphibians lay their eggs in water, while reptiles lay eggs on land.

Among reptiles, some groups, such as turtles and crocodilians, only lay eggs; they are never livebearers. Most snakes and lizards also lay eggs, but approximately 20 percent are livebearers.