Cockroaches, cold and warm

Référence de la vidéo 11932345
Split-screen shot of American cockroaches (Periplaneta americana) after being chilled in refrigerator. This is a demonstration to show their cold-blooded nature. The roaches on the left have not yet warmed up, and are completely inactive. Those on the right are back at room temperature. Insects are cold-blooded, which means their body temperatures changes with the temperature of their surroundings. As such, they need an external source of heat to gain the energy required to become active. These cockroaches are not harmed in any way.
Licence : Droits gérés
Crédit : Science Photo Library / Matulavich, Peter
Model Release : Non requis
Property release : Non requis
Durée : 14 Secondes
Aspect ratio : 16/9
Restrictions : -

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