Male spiders give female spiders gifts of prey wrapped in silk to increase mating success. Wrapping the gift in silk prevents the female from stealing it without copulating and sometimes male spiders’ concealed gifts are just random trash.
There is a spider named Portia which is capable of insight, trial-and-error learning, and puzzle solving due to its source of food, which is, other spiders.
3Goliath birdeater tarantula
The gigantic, hairy "Goliath birdeater" tarantula spider is entirely harmless and passive toward humans and their bite would hardly compare to the sting of a wasp.
4Female black widow spiders
Female black widow spiders rarely eat their partners after mating and much of the documented evidence for mate cannibalism has taken place in laboratory cages where the males could not escape.
5Himalayan jumping spider
The Himalayan jumping spider can live at elevations greater than 20,000 feet. It relies on bugs being blown to those heights by the wind for food.
Jumping spiders chase laser pointers.
7Brown recluse spider
In 2011, a Missouri family sued the previous owners of a house that they had just bought after Brown recluse spiders "started bleeding out of the walls." An expert came in and estimated that the house was infested with 4,500 - 6,000 of the spiders.
8Golden orb-weaver spiders
In 2009, a rare textile made from the silk of more than a million wild spiders went on display today at the American Museum of Natural History in New York City. One million golden orb-weaver spiders lent their silk to create a shimmering, golden textile. Each spider had to be caught and “milked” by hand.
9Brazilian wandering spider
The venom of the Brazilian wandering spider can cause an erection that lasts for hours.
10Golden wheel spider
There is a spider named Golden wheel spider that turns into a "wheel" and cartwheels away when it is in danger.