The Miraculous Evolution Of The Caterpillar

April 25th, 2010 Posted in Green Living & News



A caterpillar is the earliest form of a butterfly or moth. Like all other species, the caterpillar has evolved over time as a result of its environment and other stimuli.

caterpillar

The caterpillar has developed astonishing evolutionary traits in the last thousand of years. Some of these adaptations have only been recently identified by scientists and researchers.

This article will discuss:


Communication Evolved From Walking

Researchers studying varying species of the birch caterpillar have witnessed evidence that the structures on the caterpillars legs have evolved to make sound. When two caterpillars approach one another, the hair like structures surrounding their bodies can produce sounds when they are enough to one another.

This form of communication is a mixture of tones and body movements, which only another caterpillar could truly interrupt. The most interesting part of this caterpillar communication is that it evolved from the caterpillar’s ability to walk. This caterpillar can communicate that a leaf or territory was its own and ward off any other intruding caterpillars.

This evolutionary trait has helped caterpillars resolve conflicts without having to physically fight over territory. The underestimated intelligence of insects is once again, stressed by the adaptations of the caterpillar.


Defenses Against Plants

Caterpillars need food to incite their transformation to their next stage of life. Unfortunately for plants, they are the prime food of the caterpillar. Over the centuries, both plants and caterpillars have developed adaptations to counter one another. Caterpillars are naturally attracted to plants for their accessibility and nutrient rich structures.

caterpillar eating plant

To view a caterpillars evolution in action you would have to witness how a caterpillar defends itself against the adaptations of a plant. Species of milkweed plants expel heart poisons and toxic latex to repel predators like the birth caterpillar, that unsuspectingly bites into the body of the plant.

Some species of caterpillars have learned to eat the leaves of this plant in a circular pattern to avoid the centers that expel this latex. While other species have developed an immunity to the heart poisons, called cardenolides, leaving them unaffected by this plant’s defenses.

At this point, the caterpillar has trumped the milkweed plant by coming up with better adaptations for its continued prosperity. However, evolution is one of the most unpredictable forces of nature than could change over time allowing the plant to once again regain control.




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  2. By benita on Apr 27, 2010

    those pics brings the “hungry caterpillar” book to mind

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