Nick Upton / Common lace weaver / Lace-webbed spider (Amaurobius similis) near the mouth of its silk-lined crevice in an old stone wall, Somerset, UK, September.

Nick Upton / Common labyrinth spiders (Agelena labyrinthica) mating in the female's funnel web with the male pinning her down and holding her legs folded to avoid being attacked by her, Corfe Common, Dorset, U...

Nick Upton / Common lace weaver / Lace-webbed spider (Amaurobius similis) male approaching a female close to her retreat in an old stone wall, vibrating her web at intervals to court her, Wiltshire, UK, October.

Nick Upton / Common lace weaver / Lace-webbed spider (Amaurobius similis) male in its web in an old stone wall at night, Wiltshire, UK, September.

Chris Mattison / Lace-web spider (Amaurobius similis) a spider associated with human dwellings, Catbrook, Monmouthshire, Wales, UK, December.

Staffan Widstrand / Wild Wonders of China / Baya weaver (Ploceus philippinus) on its nest, Tongbiguan Nature Reserve, Dehong prefecture, Yunnan province, China. May

Staffan Widstrand / Wild Wonders of China / Baya weaver (Ploceus philippinus) on its nest in Tongbiguan Nature Reserve, Dehong Prefecture, Yunnan province, China, May.

Staffan Widstrand / Wild Wonders of China / Baya weaver (Ploceus philippinus) on its nest in Tongbiguan Nature Reserve, Dehong prefecture, Yunnan province, China, May.

Staffan Widstrand / Wild Wonders of China / Baya weaver (Ploceus philippinus) on its nest in Tongbiguan Nature Reserve, Dehong prefecture, Yunnan province, China. May

Ann & Steve Toon / Sociable weaver (Philetairus socius) nest on telegraph pole, Northern Cape, South Africa.

Ann & Steve Toon / Sociable weaver (Philetairus socius) nest in quiver tree (Aloidendron dichotomum) Quiver tree forest, Keetmanshoop, Namibia.

Lucas Bustamante / Sociable weaver (Philetairus socius) looking out of nest hole, Etosha National Park, Harare Province, Namibia.