Cyril Ruoso / Spider (Araneae) webs on Umbellifers (Apiaceae) Yonne, Burgundy, France, October.

Cyril Ruoso / Maple (Acer sp) leaf hanging in the air on a Spider (Araneae) web strand, Picardy, France, October.

Cyril Ruoso / Spider (Araneae) webs on Umbellifers (Apiaceae) Yonne, Burgundy, France, October.

Cyril Ruoso / Spider (Araneae) webs on Umbellifers (Apiaceae) and other vegetation, Yonne, Burgundy, France, October.

Ann & Steve Toon / Dancing white lady spider (Leucorchestris arenicola) with silk lining from burrow (unearthed by jackal), Namib Desert, Namibia, May.

Ann & Steve Toon / Dancing white lady spider (Leucorchestris arenicola), Namib Desert, Namibia, May.

Ann & Steve Toon / Dancing white lady spider (Leucorchestris arenicola), with silk lining from burrow (unearthed by jackal), Namib Desert, Namibia, May.

Ann & Steve Toon / Burrow of Dancing white lady spider (Leucorchestris arenicola), Namib Desert, Namibia, May.

Ann & Steve Toon / Burrow of Dancing white lady spider (Leucorchestris arenicola), Namib Desert, Namibia, May.

MYN / Piotr Naskrecki / Daddy longlegs / Longbodied cellar spider (Pholcus phalangoides) female with egg case, Concord, Masachusetts, USA, June. meetyourneighbours.net project

MYN / Piotr Naskrecki / Daddy longlegs / Longbodied cellar spider (Pholcus phalangoides) female with egg case, Concord, Masachusetts, USA, June. meetyourneighbours.net project

MYN / Piotr Naskrecki / Orb weaver spider (Araneae) portrait, Concord, Massachusetts, USA, June. meetyourneighbours.net project

MYN / Piotr Naskrecki / Ground crab spider (Xysticus ferox) Concord, Massachusetts, USA, June. meetyourneighbours.net project

MYN / Piotr Naskrecki / Daddy longlegs / Longbodied cellar spider (Pholcus phalangoides) female with egg case, Concord, Masachusetts, USA, June. meetyourneighbours.net project

Nigel Cattlin / Spider waiting on a Rice (Oryza sativa) leaf for prey, Luzon, Philippines, September

Nigel Cattlin / Wolf spider (Lycosa pseudoannulata) female with egg case a predator in Rice (Oryza sativa) paddies, Philippines

Nigel Cattlin / Wolf spider (Lycosa pseudoannulata) female with egg case a predator in Rice (Oryza sativa) paddies, Philippines

Nigel Cattlin / Lynx spider (Oxyopes sp.) a predatory hunting spider of small in vertebrates in Rice (Oryza sativa) crops, Luzon, Philippines,

Nick Garbutt / Costa Rican orange-kneed tarantula (Megaphobema mesomelas) female, on rainforest floor, Bosque de Paz, Montane forest, Atlantic slope, Costa Rica.

Roman Willi / Goldenrod crabspider (Misumena vatia) resting on underside of leaf, Lucerne, Switzerland. September. Focus stacked image.

Roman Willi / RF - Wolf spider (Schizocosa sp.) holding on to moth prey, Osa Peninsula, Costa Rica. (This image may be licensed either as rights managed or royalty free.)

Roman Willi / Jumping spider (Heliophanus sp.) resting on leaf with insect prey, Lucerne, Switzerland. April. Focus stacked image.

Roman Willi / Orbweaver spider (Epeiroides bahiensis) portrait, Osa Peninsula, Costa Rica. Focus stacked image.

Roman Willi / RF - Jumping spider (Euophrys frontalis) female, portrait, Lucerne, Switzerland. May. Focus stacked image. (This image may be licensed either as rights managed or royalty free.)

Roman Willi / Wall crab spider (Selenops sp.) male, portrait, Osa Peninsula, Costa Rica. Focus stacked image.

Roman Willi / RF - Jumping spider (Xanthofreya bicuspidata) female, portrait, Osa Peninsula, Costa Rica. Focus stacked image. (This image may be licensed either as rights managed or royalty free.)

Roman Willi / Goldenrod crab spider (Misumena vatia) juvenile, resting on a petal, Lucerne, Switzerland. August.

Roman Willi / Jumping spider (Phiale sp.) female, resting on leaf mimicking a Velvet ant, Tinamaste, Costa Rica.

Roman Willi / Senoculid spider (Senoculus sp.) portrait, Tinamaste, Costa Rica. Focus stacked image.

Roman Willi / Fishing spider (Cupiennius coccineus) with prey, Osa Peninsula, Costa Rica. Focus stacked image.

Roman Willi / Crab spider (Epicadus sp.) female, resting on plant stem, Tinamaste, Costa Rica.

Roman Willi / RF - Huntsman spider (Olios sp.) resting on leaves, Osa Peninsula, Costa Rica. Focus stacked image. (This image may be licensed either as rights managed or royalty free.)

Roman Willi / Jumping spider (Marpissa muscosa) female, preparing to jump, Lucerne, Switzerland. May.

Roman Willi / Jumping spider (Sidusa unicolor) male, portrait, Osa Peninsula, Costa Rica.

Roman Willi / Costa Rican red leg tarantula (Megaphobema mesomelas) male, camouflaged in leaf litter, Cartago, Costa Rica.

Roman Willi / Goldenrod crabspider (Misumena vatia) resting on flower in urban garden, Lucerne, Switzerland. September.

Pal Hermansen / Four-spot orb-weaver spiders (Araneus quadratus) pair, female on right, male approaching female, Ostfold, Norway. July.

Pal Hermansen / Nursery web spider (Dolomedes sp.) on a flower with insect prey, Viken, Norway. July.

Andy Sands / Garden spider (Araneus diadematus) on orb web at dawn with dew, Hertfordshire, England, UK. September. Focus stacked.

Ugo Mellone / Fishing spider (Trechalea sp.) resting on rock at edge of stream, Sierra Nevada de Santa Marta, Colombia.

Vishal Jadhav / Decorative silver orb spider (Leucauge decorata) feeding on insect prey, Maharashtra, India. November.

Vishal Jadhav / Decorative silver orb spider (Leucauge decorata) feeding on insect prey, Maharashtra, India. November.

Emanuele Biggi / Thorn spider (Gasteracantha versicolor formosa) hanging down from its web under a tree in the forest, Ranomafana National Park, Madagascar.

Bernard Castelein / Nursery web spider (Pisaura mirabilis) on web guarding spiderlings, Brasschaat, Belgium. August.

Bernard Castelein / Nursery web spider (Pisaura mirabilis) on web guarding spiderlings, Brasschaat, Belgium. August.

Bernard Castelein / Raft spider (Dolomedes fimbriatus) resting on Tansy flowers (Tanacetum vulgare), Klein Schietveld, Brasschaat, Belgium. August.

Bernard Castelein / Nursery web spider (Pisaura mirabilis) female, resting on dew covered wrapping cover of its breeding ball, Klein Schietveld, Brasschaat, Belgium. July.

Tim Laman / Spider on web with morning dew, Bioko Island, Equatorial Guinea.

David Perpinan / Crab spider (Synema globosum) hiding beneath Grey-leaved cistus (Cistus albidus) petal, preparing to ambush prey, Barcelona, Spain. July.

David Perpinan / Jumping spider (Menemerus semilimbatus) on a wall, feeding on a Fly, Barcelona, Spain. August.

David Perpinan / Close up of a Jumping spider (Menemerus semilimbatus) feeding on a Fly (Diptera), Barcelona, Spain. August.

David Perpinan / Crab spider (Thomisus onustus) on the underside of Grey-leaved cistus (Cistus albidus) petal. The Spider is moving a captured Syrphid. Barcelona, Spain. July.

David Perpinan / Jumping spider (Menemerus semilimbatus) on a wall, feeding on a Fly, Barcelona, Spain. August.

David Perpinan / Crab spider (Thomisus onustus) on the underside of a Grey-leaved cistus (Cistus albidus) petal, ready to ambush its prey. The Spider is moving its fangs. Barcelona, Spain. July.

David Perpinan / Jumping spider (Menemerus semilimbatus) on a wall, feeding on a Fly, Barcelona, Spain. August.

David Perpinan / Crab spiders (Thomisus onustus) (Synema globosum) on a Grey-leaved cistus (Cistus albidus) flower with Beetles. A Beetle bothers the Spider (Thomisus onustus) and then the Spider flicks it away with i...

David Perpinan / Crab spider (Thomisus onustus) on a Grey-leaved cistus (Cistus albidus) petal, ready to ambush its prey. A Beetle is feeding on the flower, infront of the Spider. Barcelona, Spain. July.

David Perpinan / Crab spider (Thomisus onustus) and Beetles on a Grey-leaved Cistus (Cistus albidus) flower. Another Crab spider (Synema globosum) appears from the underside of a petal and attempts to catch a Beetle....

David Perpinan / Crab spider (Synema globosum) on underside of a Grey-leaved Cistus (Cistus albidus) petal. It attempts to catch a Bee but fails. Barcelona, Spain. July.

David Perpinan / Spanish wolf spider (Lycosa hispanica) appearing suddenly at the entrance of its nest, Cuenca, Spain. August.

David Perpinan / Crab spider (Thomisus onustus) catching a Syrphid on a Grey-leaved cistus (Cistus albidus) flower, Barcelona, Spain. July.

Daniel Nunez / Hunting spider (Cupiennius salei) feeding on insect prey in rainforest, Caribbean Slope of Guatemala, Sierra Caral Reserve, Izabal, Guatemala.

Daniel Nunez / Hunting spider (Cupiennius salei) feeding on insect prey in rainforest, Caribbean Slope of Guatemala, Sierra Caral Reserve, Izabal, Guatemala.

Bruce Thomson / Bronze jumping spider (Helpis minitabunda) resting on leaf, Canberra, ACT, Australia.

Guy Edwardes / European tarantula (Lycosa praegrandis) female, resting on rock in dry grassland habitat, near Bratsigovo, Bulgaria. June.

Guy Edwardes / European tarantula (Lycosa praegrandis) female, resting on rock in dry grassland habitat, near Bratsigovo, Bulgaria. June.

Guy Edwardes / European tarantula (Lycosa praegrandis) female, resting on rock in dry grassland habitat, near Bratsigovo, Bulgaria. June.

Guy Edwardes / European tarantula (Lycosa praegrandis) female, resting on rock in dry grassland habitat, near Bratsigovo, Bulgaria. June.

Guy Edwardes / European tarantula (Lycosa praegrandis) female, resting on rock in dry grassland habitat, near Bratsigovo, Bulgaria. June.

Roman Willi / Jumping spider (Heliophanus sp.) spiderling emerging from entrance to egg sac and waving mandibles before retreating, Lucerne, Switzerland, July 2019.

Ripan Biswas / Fish-eating spider (Nilus sp.) feeding on fish, West Bengal, India, October.

Joel Sartore / Photo Ark / Hajar Mountain tarantula (Ischnocolus jickelii) female, portrait, collected near Wadi Sahm, Fujairah, UAE.

Joel Sartore / Photo Ark / False tarantula (Calisoga longitarsus) portrait, Lindsay Wildlife Experience, California, USA. Captive.

Joel Sartore / Photo Ark / Torreya trap-door spider (Cyclocosmia torreya) female, portrait, Verve Biotech, Nebraska. Captive, occurs in Florida, USA.

Joel Sartore / Photo Ark / Torreya trap-door spider (Cyclocosmia torreya) female, portrait, Verve Biotech, Nebraska. Captive, occurs in Florida, USA.

Joel Sartore / Photo Ark / Torreya trap-door spider (Cyclocosmia torreya) female, portrait, Verve Biotech, Nebraska. Captive, occurs in Florida, USA.

Joel Sartore / Photo Ark / Sarawak blue-legged tarantula (Birupes simoroxigorum) juvenile, portrait, Verve Biotech, Nebraska. Captive, occurs in Malaysia.

Joel Sartore / Photo Ark / Ecuadorian black-beauty tarantula (Pamphobeteus sp. 'Manganegra') portrait, Verve Biotech, Nebraska. Captive, occurs in South America.

Joel Sartore / Photo Ark / West African button spider (Aetrocantha falkensteini) portrait, from Bioko Island, Equatorial Guinea.

Adrian Davies / Spider (Tetragnatha sp.) resting on Nettle (Urtica dioica) leaf, Surrey, UK. May.

Natalie Clements / Garden Spider (Araneus diadematus) feeding on Fly (Diptera) in garden, Cardiff, Wales, UK, August.

Natalie Clements / Garden Spider (Araneus diadematus) wrapping Fly (Diptera) in webbing in garden, Cardiff, Wales, UK, August.

Natalie Clements / Garden Spider (Araneus diadematus) wrapping fly (Diptera) in webbing before climbing up web in garden ,Cardiff, Wales, UK, August.

Natalie Clements / Garden Spider (Araneus diadematus) wrapping Fly (Diptera) in webbing in garden, Cardiff, Wales, UK, August.

Natalie Clements / Garden Spider (Araneus diadematus) wrapping Fly (Diptera) in webbing in garden, Cardiff, Wales, UK, August.

Natalie Clements / Garden Spider (Araneus diadematus) climbing up spiders web, Cardiff, Wales, UK, August.

Natalie Clements / Garden Spider (Araneus diadematus) weaving spiders web, Cardiff, Wales, UK, August.

Natalie Clements / Garden Spider (Araneus diadematus) weaving spiders web, Cardiff, Wales, UK, August.

Nigel Cattlin / Droplets of water formed by an early morning mist on the delicate gossamer threads of an orb-web spider (Araneae gossammer) web, Berkshire, UK, February.

Nigel Cattlin / Droplets of water formed by an early morning mist on the delicate gossamer threads of an orb-web spider (Araneae gossammer)'s web, Berkshire, UK, February.