Joao Burini / Wandering spider (Ctenus medius) feeding on a Ischnocnema frog. South-east atlantic forest, Tapirai, Sao Paulo, Brazil.

Joao Burini / Wandering spider (Ctenus sp.) preying on a camel cricket. South-east Atlantic forest, Tapirai, Sao Paulo, Brazil.

Joao Burini / Wandering spider (Ctenus medius) feeding on a Ischnocnema frog. South-east atlantic forest, Tapirai, Sao Paulo, Brazil.

MYN / Andrew Snyder / Fishing spider (Ancylometes bogotensis), Berbice River, Guyana, September. Meetyourneighbours.net project.

MYN / Andrew Snyder / Fishing spider (Ancylometes bogotensis), Berbice River, Guyana, September. Meetyourneighbours.net project.

James Christensen / Wandering Spider (Ctenus sp) female, Sierra Llorona Lodge, Santa Rita Arriba, Panama

MYN / Andrew Snyder / Wandering spider (Ctenus sp.) Surama, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Wandering spider (Ctenus sp) Surama, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Wandering spider (Ctenus sp) Surama, Guyana. Meetyourneighbours.net projectJuly, 2013

MYN / Andrew Snyder / Wandering spider (Ctenus sp) Surama, Guyana. Meetyourneighbours.net project

PREMAPHOTOS / Wandering spider female {Ctenus sp} Uganda

James Christensen / Wandering Spider (Ctenus sp), Sierra Llorona Lodge, Santa Rita Arriba, Panama

James Christensen / Wandering Spider (Ctenus sp) male, Sierra Llorona Lodge, Santa Rita Arriba, Panama

James Christensen / Wandering Spider (Ctenus sp) female, Sierra Llorona Lodge, Santa Rita Arriba, Panama

Daniel Heuclin / Fishing spider (Ancylometes bogotensis) venom being milked in laboratory. From Central and South America.

Daniel Heuclin / Fishing spider (Ancylometes bogotensis) venom being milked in laboratory. From Central and South America.

Joel Sartore / Photo Ark / Brazilian wandering spider (Phoneutria fera) portrait, Urku Center, Tarapoto, Peru. Captive.

Roman Willi / Wandering spider (Ancylometes bogotensis) female, carrying an egg sac, Osa Peninsula, Costa Rica.

Roman Willi / Wandering spider (Ctenus sp.) female, guarding its brood of spiderlings, Corcovado National Park, Costa Rica. Focus stacked.

Gil Wizen / Female Wandering spider (Phoneutria fera) guarding her swarm of offspring under a bed in a research station, Jatun Sacha Biological Station, Napo province, Amazon basin, Ecuador. Winner of Urban Wildl...

Joao Burini / Ornate wandering spider (Ctenus ornatus) portrait, Southeastern Atlantic Forest, Mantiqueira Mountain Range, Sao Francisco Xavier, Sao Paulo, Brazil.