Piotr Naskrecki / Mexican Red Rump Tarantula (Brachypelma vagans), Belize

Alex Hyde / Baboon Spider (Pterinochilus murinus) in aggressive posture, photographed on a white background. Captive, originating from Africa.

Jabruson / King baboon spider (Citharischius crawshayi) with mouse prey. Tsavo NP, Kenya, East Africa

Jabruson / King baboon spider in defensive posture, Tsavo NP, Kenya

Jabruson / African baboon spider {Theraphosidae / Tarantula family) Odzala NP, Democratic Republic of Congo.

Jabruson / Female King baboon spider feeds on mouse kill, Tsavo NP Kenya

Jabruson / King baboon spider with dead mouse, Kenya, Africa

Gerry Ellis / Mexican Red-knee Tarantula (Brachypelma smithi), Mexico

Mark Moffett / Peruvian Pinktoe Tarantula (Avicularia urticans) walking on water after being flooded from its nest, Amazonian ecosystem, Peru

Mark Moffett / Peruvian Pinktoe Tarantula (Avicularia urticans) eating tree frog, Amazon, Peru

Mark Moffett / Ecuadorian Brown Velvet Tarantula (Megaphobema velvetosoma) shedding its skin (cuticle), Ecuador

Mark Moffett / Ecuadorian Brown Velvet Tarantula (Megaphobema velvetosoma) shedding its skin (cuticle), Ecuador