Diving Bell Spiders Breathing Underwater

In freshwater lakes, ponds, and rivers in Europe and Asia, a spider spends virtually its entire life below water, catching prey, mating, laying eggs, resting, and overwintering. Called diving bell spiders or simply water spiders (Argyroneta aquatica), they are the only spiders that breathe air underwater. Diving bell spiders have a very dense layer of …

Animal Environmentalists – Pygmy Marmosets

People have only recently begun to realize that we must manage the environment in a way that doesn’t destroy the resources we need for survival. However, we see many examples of animals using conservation measures to preserve a vital resource. A classic example of animal environmentalists is the pygmy marmoset in the western Amazon of …

Endothermic or Ectothermic – What’s the Difference?

You are an endothermic mammal. That means your body’s metabolic rate controls your internal body temperature. We describe that condition by saying you are “warm-blooded.” Many life forms on our planet are “cold-blooded” (ectothermic) because the environment controls their internal body temperature. The limitation of being cold-blooded is that it requires warm environmental temperatures. Ectothermic …