Rare Vegetarian Spider

In a possible affront to its fierce meat-eating relatives, one jumping spider prefers to dine vegetarian, munching on specialized leaf-tips of acacia shrubs, finds a new study.

The eight-legged vegetarian, called Bagheera kiplingi, lives in Central America, and is now considered a rarity among the world's 40,000 or so spider species, most of which are strictly predators, feeding on insects and other animals. B. kiplingi is about the size of a person's pinky nail.

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"This is really the first spider known to specifically 'hunt' plants; it is also the first known to go after plants as a primary food source," said study researcher Christopher Meehan of Villanova University in Pennsylvania. (Co-author Eric Olson of Brandeis University independently observed the same behaviors in another population of this spider in Costa Rica.)

Essentially, the spider employs hunting strategies to get past guard ants that keep the acacias safe from other herbivores. In return, the ants get a comfy place to live the plant's hollow spines and food in the form of acacia nectar and the shrub's leaf-tips.

http://www.livescience.com/5759-rare-vegetarian-spider-discovered.htmlClick image for larger version. 

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