Showing posts with label mate. Show all posts
Showing posts with label mate. Show all posts

Wasps Favor Large Size for Sex

Size matters when it comes to sex. When in the orchid world it does anyway! The plants rely on wasps for fertilization. Apparently, male wasps are attracted to the largest orchids. Shape of plants also has a role.
Male wasps visit large orchids to pollinate them
Orchids are a replica of female wasps, in shape and scent. Two orchids who had two kinds of wasps enamored with them were observed. The wasps did visited both types of plants but they spent more time "copulating' with their favored orchid.

Scent is offered to male wasps on little black beads. This only attracts males to the flowers. Once there, shape and size of blooms affects whether wasps stay or go. Orchids also benefits from this because plants with larger flowers are fertilized and they produce the next generation of orchids.
Chemistry by Ty Buchanan
            Australian Blog   Adventure Australia
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wasps orchids plants attract fertilization blooms scent smell male female

Flower Squirrel

You should not have given me flowers squirrels
"Oh, you shouldn't have!"
Chuckle Varmint Snapshots
Australian Blog
 Adventure Australia
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squirrels giving pretty flowers couple pair happy pretty

The Dung Beetle Is the Strongest of Them All

Who's the strongest pound for pound? That bug upon the ground!

Scientists have worked out which creature is the strongest. It is a dung beetle, Onthophagus taurus. This tiny bug can pull 1,141 times its own body weight. For a human to equal this he/she would have to lift 80 tonnes, equivalent to six trucks.

The dung beetle has to be extremely fit and healthy to accomplish this feat. Putting them on poor diets before a test reduced the amount they could pull. Apparently, they have to be strong because of their lifestyle. A male digs a deep hole under a dung pat where he mates with a female. If another male enters the tunnel the two males will fight a furious battle by locking horns until one is pushed out. The more weight a male can pull the more likely he is to win the fight and be able to mate, thus passing on his genes for high strength.

Some male beetle don't seem to compete with the large aggressive males. They are born smaller and weaker. When they were fed more they still did not take up the fight, but their testicles became larger. This enables them to mate more often taking advantage of larger males who let their guard down.
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Less Atractive Males Make do With Plainer Females

An audience affects the behavior of mating male fish. If a male Atlantic Molly (Poecilia mexicana) is left alone he will try to mate with the healthiest looking female - the best female in his eyes. If there are other males in the vicinity he will not choose this female.

It may be thought that he is giving up. This is not the case. He is thinking strategically. By choosing a less desirable female he leads other males away from the intended target best female. The male hopes to mate with this female later when the other rival males have gone.

Some males are just too ordinary and have to mate with lesser females because other fitter males stop them getting close to "ideal" females. Mating with any female is better than not mating at all.

This behavior could be present in humans. When a group of young men meet with a group of young females the handsomest men can be expected to pair off with the prettiest young ladies. The less attractive have to make do with second best. This means that some of the good genes carried by the plainer individuals can be passed on despite mating between the healthier, fitter thus better looking people being the norm.
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