Expand / / Look closely to the spider’s two biggest eyes and you’ll be able to see internal structures like the ones which we have evolved. (charge: Emre May Alagöz)
To begin with, the confession: I am an arachnophobe, spooked from the most benign regular lions. Close encounters with all the scarier type –that the goliath bird-eating spider at an undergraduate zoology course, the venomous redbacks sharing my tent on a study visit to Australia–well, let us simply say they taught me about myself than arachnids. And {} found a soft place for a single set of lions: these undersized men confronted with the daunting possibility of intercourse with a giant partner, frequently a single with murder in mind.
Exactly why the sympathy? It is not because those puny men hazard their own lives for love. It is because they have evolved such a weird variety of approaches to reach their final objective of siring spiderlings using a creature of a mom.
Sexual size dimorphism–in which one gender is larger than another –is not anything too much from the normal: Picture a huge man orangutan, and also even the bull elephant seal towering over his harem. And lots of insects and other terrestrial arthropods have big females, as a larger body may make more eggs.
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