There was never any evolutionary pressure, that made more potent venom more advantageous.
Producing more powerful venom has a metabolic 'cost' to the spider, ie, it takes more energy. Because Spiders in the UK prey on small insects, stronger venom gives no advantage, it's a waste of energy. Natural selection therefore favours spiders with a less potent, more energy efficient venom.
are ticks dangerous then spiders
A green spider with a red spot is dangerous if it is a red back. Normally, green spiders are not dangerous.
They get up to 1/4 to 3/4 in. per length but be careful, they are dangerous.
It is simple. Lions, snakes like black mombas, rattlesnakes and many other ones. Cheetahs, I think spiders and lots of other dangerous animals
They are carnivores as well.
Furrow spiders belong to the genus Larinioides.These spiders weave orb webs. No spiders that weave orb webs are dangerous to humans.
no!
Very!
yes
yes
They can be : most spiders use venom to paralyze their prey.
yes
Yes, most spiders are harmless to humans. Only a few spiders are dangerous to humans.
yes money spiders do bite they are extremely dangerous and will kill you if they bite! money spiders (jumping spiders) are in one of the top worlds dangerous spiders and there is still no existing cure for if it injects its venom into you many people have died thinking the money spider is non affective and of cute because it is small please do not be fulled it is DANGEROUS!
its not that dangerous to visit the UK
The UK is a country in Europe with a constitutional monarchy, while Australia is a country and continent in the Southern Hemisphere with a federal parliamentary democracy. The UK has a colder climate compared to Australia, which is known for its warm weather and diverse landscapes. The UK has a population of around 66 million, while Australia's population is approximately 25 million.
Spiders...