MYN / Gil Wizen / Two-tailed spider (Hersilia caudata) female, Central Coastal Plain, Israel, June. meetyourneighbours.net project

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

Alex Hyde / Long-spinnered Bark Spider (Hersiliidae sp) protecting egg sac on tree bark. Tropical rainforest, Masoala Peninsula National Park, north east Madagascar. October.

Alex Hyde / Long-spinnered Bark Spider (Hersiliidae sp) camouflaged on tree bark where it waits to ambush passing prey. Tropical rainforest, Masoala Peninsula National Park, north east Madagascar. October.

Alex Hyde / Long-spinnered Bark Spider / Two-tailed Spider (Hersiliidae sp.), Danum Valley, Sabah, Borneo. June.

Alex Hyde / Long-spinnered Bark Spider (Hersiliidae sp) camouflaged on tree bark where it waits to ambush passing prey. Tropical rainforest, Masoala Peninsula National Park, north east Madagascar. October.

Alex Hyde / Long-spinnered Bark Spider (Hersiliidae sp) camouflaged on tree bark where it waits to ambush passing prey. Tropical rainforest, Masoala Peninsula National Park, north east Madagascar. October.

Duncan Murrell / Lichen huntsman spider (Pandercetes gracilis) female with a silk sac of spiderlings attached to a tree trunk in the Danum Valley Conservation Area lowland dipterocarp rainforest, Sabah, Malaysian Born...

Nick Garbutt / Pink-toed tarantula (Avicularia avicularia), female waiting in ambush outside daytime lair in palm tree trunk. Heath River, Tambopata / Bahuaja-Sonene Reserves, Amazonia, Peru / Bolivia border.

Nick Garbutt / Pink-toed tarantula (Avicularia avicularia), female waiting in ambush outside daytime lair in palm tree trunk. Heath River, Tambopata / Bahuaja-Sonene Reserves, Amazonia, Peru / Bolivia border.

Alex Hyde / Huntsman spider (Sparassidae) on tree trunk. Danum Valley, Sabah, Borneo.

SCOTLAND: The Big Picture / Dawn mist in Abernethy Forest with lots of spider webs in grass, Cairngorms National Park, Scotland, UK, August.

Alex Hyde / Tailless whipscorpion (Amblypygi) on a tree trunk at night. Central Caribbean foothills, Costa Rica.

Brent Stephenson / Flattened bark spider (Hemicloea rogenhoferi) camouflaged against tree trunk, Silver Range, Hawkes Bay, New Zealand, September.

Brent Stephenson / Vagrant spider (Uliodon sp) on a tree trunk, Silver Range, Hawkes Bay, New Zealand, September.

Brent Stephenson / Square-ended crab spider (Sidymella sp) on its web spun, Silver Range, Hawkes Bay, New Zealand, September.

Cyril Ruoso / Huntsman spider (Heteropoda boiei) on tree trunk at night, Way Kambas National Park, Sumatra, Indonesia.

MYN / Gil Wizen / Two-tailed spider (Hersilia caudata) male, Central Coastal Plain, Israel, June. meetyourneighbours.net project

Floris van Breugel / Misty forests along the coastline of Olympic National Park, Washington, USA. October 2013

Konrad Wothe / Pinktoe tarantula (Avicularia avicularia) on tree trunk n tropical rainforest, Tambopata National Reserve, Peru, South America.

Suzi Eszterhas / Giant Crab Spider (Sparassidae sp) on tree trunk, Danum Valley Conservation Area, Sabah, Borneo, Malaysia

Juan Carlos Munoz / Jersey tiger moths (Euplagia quadripunctaria) resting on trunk of Sweetgum tree (Liquidambar orientalis) near opening of funnel-web spider nest, in the Petaloudes Valley, Rhodes island, Greece, August...

Jouan & Rius / Wolf spider (Lycosidae) on rainforest tree trunk, Borneo, Sarawak, Malaysia

Jouan & Rius / Wolf spider (Lycosidae) on rainforest tree trunk, Borneo, Sarawak, Malaysia

Chien Lee / Giant Crab Spider (Sparassidae) camouflaged on tree trunk, Gunung Mulu National Park, Malaysia

Alex Hyde / Long-spinnered bark spider {Hersiliidae sp} camouflaged on tree bark, tropical rainforest, Masoala Peninsula National Park, north east Madagascar.

Alex Hyde / Long-spinnered bark spider {Hersiliidae sp} camouflaged on tree bark, tropical rainforest, Masoala Peninsula National Park, north east Madagascar.

Pete Oxford / Goliath Bird-eating Spider (Theraphosa blondi) on tree trunk, Rewa River, Guyana

Pete Oxford / Goliath Bird-eating Spider (Theraphosa blondi) on tree trunk, Rewa River, Guyana

Steven David Miller / Badge Huntsman spider (Neosparassus) sitting on tree trunk, detail of eyes, palps, mouth parts, Undara Volcanic National Park, North Queensland, Australia

Stephen Dalton / Invisible money spider (Drapetisca socialis) camouflaged against beech tree trunk. UK

Stephen Dalton / Black lace weaver spider (Amaurobius ferox) at hole in tree trunk, UK, Amaurobiidae

Stephen Dalton / Ground / Stealthy spider (Drassodes sp) on tree trunk, UK

Stephen Dalton / Invisible spider (Drapetisca socialis) hunting on trunk of a beech tree, UK

Stephen Dalton / Invisible spider (Drapetisca socialis) on trunk of Beech tree, UK, Linyphidae

Stephen Dalton / Invisible spider (Drapetisca socialis) on trunk of Beech tree, UK, Linyphidae

Stephen Dalton / Invisible spider (Drapetisca socialis) on trunk of Beech tree, UK, Linyphidae

Stephen Dalton / Black lace weaver spider (Amaurobius ferox) emerging from hole in tree trunk, UK, Amaurobiidae

Jasper Doest / Texas Brown Tarantula (Aphonopelma hentzi) on a dead tree trunk, George West, Texas

Staffan Widstrand / Close up of Tarantula spider {Tarantula sp} on tree trunk, Amazonas, Brazil, September

Staffan Widstrand / Tarantula spider {Tarantula sp} on tree trunk, Amazonas, Brazil, September

Luiz Claudio Marigo / Brazilian yellow banded pink toe tarantula (Avicularia juruensis) on tree trunk of "várzea" Amazon flooded forest, Mamirauá Sustainable Development Reserve, Amazonas State, Northern Brazil.

Jasper Doest / Texas Brown Tarantula (Aphonopelma hentzi) on tree trunk, George West, Texas

Piotr Naskrecki / Whip Scorpion (Phrynus parvulus) two males in territorial combat on a tree trunk in the lowland Atlantic rainforest of Costa Rica

PREMAPHOTOS / Lichen Spider female {Pandercetes gracilis} disguised on tree trunk Sulawesi, Indonesia

Premaphotos / Forest huntsman spider (Pandercetes plumipes) camouflaged on a tree-trunk in rainforest, Malaysia

Premaphotos / Invisible spider female (Drapetisca socialis) on the trunk of a Beech tree, UK

Premaphotos / Spider (Trachalea sp) on a tree trunk in rainforest, Peru

Premaphotos / House crab spider (Philodromus dispar) male on a tree-trunk, UK

WILLIAM OSBORN / Red backed spider {Latrodectus hasselti} on tree trunk, Queensland, Australia

Nick Garbutt / Tailless whip scorpion (Amblypygi) resting on tree trunk during the day, Piedras Blancas National Park, near Osa Peninsula, Pacific slope, Costa Rica.

Roman Willi / Whip spider (Paraphrynus sp.) resting on tree trunk at night, Osa Peninsula, Costa Rica.

Roman Willi / Tree trunk spider (Neotama sp.) camouflaged on tree bark, Osa Peninsula, Costa Rica. Focus stacked.

Lucas Bustamante / Lichen huntsman spider (Pandercetes sp.) camouflaged on lichen-covered tree trunk, Mulu, Sarawak, Malaysia.

Chris Mattison / Female Huntsman spider (Micrommata ligurina) on a tree trunk, Paphos, Cyprus. Controlled conditions.

Gil Wizen / Two-tailed spider (Hersiliidae) resting on lichen-covered tree trunk, Punta Gorda, Belize.

Emanuele Biggi / Huntsman spider (Thunberga cf. septifer), adult male on tree trunk, Madagascar. This is a relatively new genus described by Peter Jaeger in 2020 and dedicated to climate activist Greta Thunberg.

Emanuele Biggi / Huntsman spider (Thunberga cf. septifer), adult male on tree trunk, Madagascar. This is a relatively new genus described by Peter Jaeger in 2020 and dedicated to climate activist Greta Thunberg.

Emanuele Biggi / Huntsman spider (Thunberga cf. septifer), adult male on tree trunk, Madagascar. This is a relatively new genus described by Peter Jaeger in 2020 and dedicated to climate activist Greta Thunberg.

Emanuele Biggi / Huntsman spider (Thunberga cf. septifer), adult male on tree trunk, Madagascar. This is a relatively new genus described by Peter Jaeger in 2020 and dedicated to climate activist Greta Thunberg.

Alex Hyde / Long-spinnered Bbark spider / Two-tailed spider (Hersiliidae sp.), Danum Valley, Sabah, Borneo.

Juergen Freund / Lichen spider (Pandercetes gracilis) camouflaged on tree trunk alongside Lichen. Daintree, Far North Queensland, Australia.

Robert Pickett / Indian Ornamental Tarantula (Poecilotheria regalis) on tree trunk, India