Hozzászólások - Greycrow

my answer to another question always is added to my own first post.
Seems to be a system error. I use opera browser.

oops - wanted to answer another post
where is delete function for own posts...

What makes a spider a spider?

The "correct" answer for the question is definitly wrong.
"It has eight legs" is defined as the right answer.

If this would be right, all scorpions would be spiders because they have eight legs.
Scorpions are definitely not spiders...

Scientifically spiders are animals by the category of weaving spiders.
By mistake, but scientifically incorrect, sometimes other classes of animals with spider like appearance are named as spiders. Examples are:
Hooded tickspider
Camel spider


The scientifically correct answer is: "It is able to weave for it's whole lifetime"

"whole lifetime" is a necessary part of the answer because caterpillars are weaving, too...