ectothermic

All insects are ectothermic, which can make them vulnerable to freezing.

Mammalian blood flow index is about 10 times greater than in ectothermic reptiles.

But the growth rings are not necessarily proof that their owners were ectothermic, or cold-blooded.

This process is useful to ectothermic (cold-blooded) animals in the regulation of their body temperature.

Behavioral adaptations allow ectothermic animals to exert some control over a given parameter.

Other physical features include being ectothermic, possessing bilateral symmetry, and polymorphic.

These cases involve ectothermic carnivores on islands too small to support much mammalian competition.

Although most fish are exclusively ectothermic, there are exceptions.

Agnathans are ectothermic, meaning they do not regulate their own body temperature.

Insects are generally considered cold-blooded or ectothermic, their body temperature rising and falling with the environment.

Temperature extremes harm animals irrespective of whether they are endothermic or ectothermic.

Ectothermic - animals that control body temperature through external means, using the sun, or flowing air or water.

Being cold-blooded (ectothermic), the surrounding temperature plays a large role in a snake's digestion.

The blue shark is also ectothermic.

As an ectothermic animal, the marine iguana can spend only a limited time in cold water diving for algae.

Ectothermic reptiles have a body temperature that tends to vary over a 24-hour period, and hence seem unable to support a large brain.

Paleontological and zoological evidence shows that ectothermic bones contain few primary vascular channels.

After non-avian dinosaurs were discovered, paleontologists first posited that they were ectothermic.

Tyrannosaurus, like most dinosaurs, was long thought to have an ectothermic ("cold-blooded") reptilian metabolism.

"Ectothermic, or coldblooded, reptiles can produce bursts of high power for locomotion, although their endurance is limited," he said.

Their endothermic capabilities provided them with a benefit over the mostly ectothermic dinosaurs that dominated the Mesozoic era.

The frill-necked lizard is ectothermic and maintains its homeostatic body temperature by basking for up to 30 minutes.

The Agnatha are ectothermic or cold blooded, with a cartilaginous skeleton, and the heart contains 2 chambers.

Amphibians are ectothermic (cold-blooded) vertebrates that do not maintain their body temperature through internal physiological processes.