23 October 2009, 08:50 AM ET
New evidence suggests that cell size affects metabolic rate.
06 October 2009, 06:24 AM ET
New study suggests that the giant lizards came from the land down under.
09 September 2009, 03:11 AM ET
Lizard tails can perform tricks, even when not attached to a lizard.
22 July 2009, 07:57 AM ET
Scientists find that there are more species of horned lizards than previously thought.
16 July 2009, 10:03 AM ET
Sandfish lizard uses wave-like motion to move through sands of Sahara.
20 April 2009, 08:10 PM ET
They sun themselves to keep warm and to produce vitamin D.
25 March 2009, 08:54 AM ET
Expedition in Papua New Guinea finds new species of spiders, frogs and geckoes.
02 February 2009, 06:23 AM ET
Harvester ants are among the most aggressive and venomous stinging insects known.
26 January 2009, 03:19 AM ET
Longer-limbed lizards can make a quicker escape from pesky fire ants.
12 November 2008, 04:31 AM ET
Some skinks have gone from being five-legged to legless in the blink of an eye in geologic time.
05 August 2008, 07:45 AM ET
Which has driven the evolution of the chameleon's ability to change its livery — camouflage or communication?
30 June 2008, 01:00 PM ET
chameleon in Madagascar spends most of its life span incubating inside its shell.
28 April 2008, 08:00 PM ET
Conservation scientists spot new animal species in Brazil's grasslands.
24 April 2008, 08:00 PM ET
A lizard's hunting technique influences whether the critter walks or runs.
16 April 2008, 08:00 PM ET
Dozens of species of frogs and other amphibians end up as road kill, a new study found.
16 March 2008, 08:00 PM ET
Geckos use tails to keep balance on vertical surfaces, right themselves in a fall.
28 February 2008, 07:00 PM ET
Scientists try to develop a glue based on the gecko's sticky foot.
11 January 2008, 09:23 AM ET
High temperatures can reverse the sex of baby dragon lizards, turning males into females.
20 December 2007, 07:00 PM ET
An expedition into New Guinea turns up a motherlode of new species.
02 November 2007, 08:08 AM ET
A new exhibit features all aspects of water, calls for conservation.
02 October 2007, 08:00 PM ET
A three-way struggle for sex resembles the game rock-paper-scissors.
23 July 2007, 04:01 PM ET
Pterosaurs' fishing methods turned out to be different than once thought.
19 July 2007, 04:50 AM ET
Dinosaurs, like people, had teen pregnancies.
18 July 2007, 10:20 AM ET
Researchers use gecko's feet to create a unique kind of glue.
15 June 2007, 06:20 AM ET
Mother side-blotched lizards know best when it comes to color patterns in their offspring.
26 March 2007, 04:35 AM ET
Remains from a 95-million-year-old marine creature with nubs for legs sheds light on how lizards crept along the evolutionary conveyor belt and morphed into slinky snakes.
23 February 2007, 04:02 AM ET
Like dancers in a crowded nightclub, some lizards ramp up their body movements to be seen above the background chaos in order to better defend their territory.
24 January 2007, 05:07 AM ET
Five baby Komodo dragons have broken through their shells under the watchful eye of their virgin mom, Flora.
26 December 2006, 12:11 PM ET
If a zebrafish loses a chunk of its tail fin, not to worry, itâ€™ll grow the fin back within a week. Now scientists think they know how.
20 December 2006, 08:03 AM ET
Maybe females could live without males, at least for Komodo dragons. These behemoths of the reptile world can produce babies without fertilization by a male.
16 November 2006, 09:01 AM ET
When island lizards were exposed to a new predator, natural selection occurred in a six-month period, first favoring longer and then shorter hind legs.
31 October 2006, 09:10 AM ET
An anatomical oddity may help flamingos eat: erectile tissue.
05 October 2006, 08:39 AM ET
Some lizards offer colorful tails to predators as bait, losing the appendages on purpose. Later in life, the tails turn gray and tend to stay put.
19 April 2006, 09:06 AM ET
A newfound fossil shows snakes used to have hips, forcing a reworking of their family tree.
17 November 2005, 12:35 AM ET
Lizards and snakes share a common venomous ancestor, a new study finds.
16 November 2005, 11:54 AM ET
When amateur fossil hunter Van Turner discovered a small vertebra at a construction site near Dallas 16 years ago, he knew the creature was unlike anything in the fossil record.