Solvin Zankl / Seeds of Oxeye daisy (Chrysanthemum leucanthemum), Europe. Dispersal is coincidental by wind, animals or water. The seeds lack any obvious structures for specialised dispersal.

Solvin Zankl / Seeds of Meadow buttercup (Ranunculus acris) - Europe

Solvin Zankl / Seeds of Wild carrot plant (Daucus carota), Europe. When ripe, the seeds form a concave umbel unlike the flat umbel of the flower when in bloom. Spines on the seeds attach to the furry feet of mammals...

Duncan Mcewan / Common polypody fern (Polypodium vulgare) Sori on underside of frond, Scotland

Duncan Mcewan / Common polypody fern (Polypodium vulgare) sori on underside of frond, Scotland

Luiz Claudio Marigo / Roasting Guarana seeds over fire, Brazil

Colin Varndell / Bullfinch {Pyrrhula pyrrhula} collecting down from Sow thistle, UK.

Bengt Lundberg / Hazelnuts gathered by Wood mouse {Apodemus sylvaticus} October, Sweden

Gabriel Rojo / Double collared seedeater {Sporophila caerulescens} La Pampa, Argentina

Bernard Castelein / Common poppy bud, flower and seedhead {Papaver rhoeas} Belgiu

Kim Taylor / Dandelion (Taraxacum officinale) seeds blowing in the wind. Digital composite, UK.

Tony Evans / Avocado fruit growing shoots, leaves and roots {Persea americana}

Konrad Wothe / Dandelion (Taraxacum officinale) ready to release its seeds, Germany, introduced into North America as a salad green now is invasive weed

Jabruson / Sitatunga scratching {Tragelaphus spekei} while searching for seeds in dung left by elephants drinking , Maya Maya Nord Bai forest clearing, Odzala NP, Congo, West Africa

Jabruson / Sitatunga {Tragelaphus spekei} searching for seeds in dung left by elephants drinking , Maya Maya Nord Bai forest clearing, Odzala NP, Congo, West Africa

Jabruson / Sitatunga {Tragelaphus spekei} searching for seeds in dung left by elephants drinking , Maya Maya Nord Bai forest clearing, Odzala NP, Democratic Republic of Congo.

Rolf Nussbaumer / Green lynx spider {Peucetia viridans} camouflaged on grass, Texas, USA.

Mark Moffett / Argentine Ant (Linepithema humile) group feed on soft nutritious eliasome at the tip of a fynbos shrub and discard the seeds without burying them, jeopardizing the fynbos community, South Africa

George McCarthy / Hibernating dormouse {Muscardinus avellanarius} curled up asleep in nest, Sussex, UK

Mark Moffett / Large Ground Finch (Geospiza magnirostris) endemic species, extra large bill for cracking large seeds, largest of Darwin's 13 Finches, Santiago Island, Galapagos Islands, Ecuador

Sumio Harada / Red Squirrel (Tamiasciurus hudsonicus) separating seeds from an Engelmann Spruce (Picea engelmannii) cone to store for winter food, Rocky Mountains, Alberta, Canada

Solvin Zankl / Dandelion seed floating {Taraxacum officinale} Germany

Geoff Simpson / Water avens seedhead and flower {Geum rivale} Peak District NP, Derbyshire, UK

David Kjaer / Goldfinch feeding on teazel head, UK

David Noton / Coconut on beach at Pigeon Point, Tobago

Geoff Simpson / Water avens seedheads {Geum rivale} Derbyshire, UK

Jabruson / Sitatunga doe and calf {Tragelaphus spekei} searching for seeds in dung left by elephants drinking , Maya Maya Nord Bai forest clearing, Odzala NP, Congo, West Africa

Paul Hobson / Bearded tit male on reed head {Panurus biarmicus} Norfolk, UK

Neil Lucas / Alsomitra seed pods (Alsomitra macrocarpa) Danham Valley, Sabah, Borneo, Malaysia

Duncan Mcewan / Broom flower with seed pod (Cytisus scoparius). Scotland, UK, Europe

Pete Oxford / African elephant reaching upo with trunk to feed on seed pods. Manu pools NP, Zimbabwe {Loxidonta africana}

Nick Upton / Goat's beard (Tragopogon pratensis) close up of seedhead 'clock', chalk grassland meadow, Wiltshire, UK, June.

Nick Upton / Goat's beard (Tragopogon pratensis) close up of seedhead 'clock', chalk grassland meadow, Wiltshire, UK, June.

Nick Upton / Common teasel (Dipsacus fullonum) seedheads covered with hoar frost, Wiltshire, UK, January.

Jabruson / Basket of Bush mango seed (Irvingia gabonensis) edible forest seeds, with child looking up at basket. Also known as 'Andok' or 'Chocolatier' due to its chocolate-like taste when properly prepared, Set...

Alex Hyde / Sycamore (Acer pseudoplatanus) seed coated in hoar frost. Peak District National Park, UK. December.

Nick Upton / Elephant grass (Miscanthus giganteus) flowerheads, grown as an energy crop for use in biomass boilers, Willtshire, UK, December.

Ernie Janes / Old mans Beard (Clematis vitalba) seedheads at sunset, Norfolk, November

Juan Manuel Borrero / Illustration of Cotton (Gossypium herbaceum) showing pink flower and seed head. Pencil and watercolor painting.

Mark Taylor / Dandelion (Taraxacum officinale) seeds being blown by girl Siena, aged 4, UK Model released

Mark Taylor / Dandelion (Taraxacum officinale) seeds being blown by Siena, aged 4, UK Model released

Mark Hamblin / 2020VISION / Male House sparrow (Passer domesticus) eating seeds from a Red hot poker (Kniphofia rufa), Pembrokeshire Coast National Park, Wales, UK, May.

Loic Poidevin / Combine harvester collecting alfalfa seeds. Breton marsh, west France, September 2012.

Loic Poidevin / Combine harvester collecting alfalfa seeds. Breton marsh, west France, September 2012.

Anup Shah / Western chimpanzee (Pan troglodytes verus) juvenile female 'Joya' aged 6 years using rocks as tools to crack open palm oil nuts, Bossou Forest, Mont Nimba, Guinea. December 2010.

Adrian Davies / Seed of a Sycamore (Acer pseudoplatanus) tree falling in autumn. Long exposure

Philippe Clement / Spiny husk splitting open and showing chestnuts of the Sweet chestnut tree / marron (Castanea sativa) on the forest floor, Belgium, October

Philippe Clement / Spiny cupules and chestnuts of the sweet chestnut tree / marron (Castanea sativa) amongst autumn leaves on the forest floor, Belgium, October

Philippe Clement / Spiny cupules and chestnuts of the sweet chestnut tree / marron (Castanea sativa) amongst autumn leaves on the forest floor, Belgium, October

Philippe Clement / Common earthball fungus (Scleroderma citrinum) on the forest floor breaking up to release spores in autumn, Belgium, October

Doug Wechsler / Mockernut hickory (Carya tomentosa) nuts, Pennsylvania, USA, September.

Alex Hyde / Goose Grass (Galium aparine) close up of fruits which are covered in hooks that become lodged in the fur of animals, aiding seed dispersal. Focus stacked image. UK.

Alex Hyde / Autumn leaves and nuts from English Oak (Quercus robur) and Beech (Fagus sylvatica), photographed on a white background. Peak District National Park, Derbyshire, UK. October.

Markus Varesvuo / Parrot Crossbill (Loxia pytyopsittacus) male feeding on pinecone, Uto Finland September

Wild Wonders of Europe / Bartocha / Common hogweed (Heracleum sphondylium) seeds, close-up, Brasov County, Carpathian Mountains, Romania, August

Wild Wonders of Europe / Bartocha / Common hogweed (Heracleum sphondylium) seeds, Brasov County, Carpathian Mountains, Romania, August

Markus Varesvuo / Twite (Carduelis flavirostris) pecking seed heads, Uto Finland November

Gary K. Smith / Red campion (Silene dioica) close up of seed heads, Norfolk, UK, July

Gary K. Smith / Red campion (Silene dioica) close up of seed heads, Norfolk, UK, July

Gary K. Smith / Red campion (Silene dioica) seed heads, Norfolk, UK, July

Gary K. Smith / Spindle (Euonymus oxyphyllus) showing the seed cases ejecting seeds, UK October

Jabruson / 'Sangi' and 'Kange' fruit and seedling (Xylopia sp) lots of rainforest species feed on the leaves, fruit and even tree bark. Paddles and crossbows are made out of the wood from this tree by local Ba'...

Jabruson / 'Boko' tree trunk (Balanites wilsoniana), lots of the tropical rainforest fauna enjoy the fruits and seeds of this species, including elephants and bush pigs, who help seed dispersal. Ba'Aka tribal pe...

Jabruson / 'Boko' tree trunk (Balanites wilsoniana), lots of the tropical rainforest fauna enjoy the fruits and seeds of this species, including elephants and bush pigs, who help seed dispersal. Ba'Aka tribal pe...

Jabruson / 'Liamba' seedlings (Desplatsia dewevrei) sprouting from African Forest Elephant dung (Loxodonta africana cyclotis) Bai Hokou, Dzanga-Ndoki National Park, Central African Republic.

Jabruson / 'Mbanda' tree trunk with bark patterns (Erthrophleum suaveolens) lots of rainforest species eat the seeds and leaves, but local tribes make a cold water infusion from the inner bark and use as a 'proo...

Jabruson / 'Mbanda' tree trunk with bark patterns (Erthrophleum suaveolens) lots of rainforest species eat the seeds and leaves, but local tribes make a cold water infusion from the inner bark and use as a 'proo...

Jabruson / 'Mbanda' tree trunk with bark patterns (Erthrophleum suaveolens) lots of rainforest species eat the seeds and leaves, but local tribes make a cold water infusion from the inner bark and use as a 'proo...

Jabruson / 'Molinda' tree trunk with wave bark patterns (Lonchocarpus sp) lots of rainforest species eat the leaves, fruit and seeds of this species. Bees often use this species of tree to build their nests and...

Jabruson / 'Nguluma' tree trunk structure (Duboscia macrocarpa) lots of rainforest species eat teh leaves, fruit and seeds of this species and local people use water from boiled fruit as a cure for colds, Bai Ho...

Jabruson / 'Nguluma' tree trunk structure (Duboscia macrocarpa) lots of rainforest species eat teh leaves, fruit and seeds of this species and local people use water from boiled fruit as a cure for colds, Bai Ho...

Jabruson / 'Nguluma' tree trunk structure (Duboscia macrocarpa) lots of rainforest species eat teh leaves, fruit and seeds of this species and local people use water from boiled fruit as a cure for colds, Bai Ho...

Jabruson / Ripe 'Popoko' fruit on the forest floor, Sterculia (Sterculia sp) eaten by a lot of forest animals and water from the boiled bark is used as a cold remedy by local tribes people, Bai Hokou, Dzanga-Ndo...

Jabruson / 'Epombepombe' (Strychos sp) ball-like forest fruit frequently eaten by the Agile Mangabey (Cercocebus agilis). This fruit shows signs of an attempt to access the fruit with bite marks scoring the hard...

Jabruson / Silkrubber / Landa / Ndembo (Funtumia elastica)seed feathery aerodynamic seed delivery system caught on a tree trunk in moss next to a termite tunnel. Bai Hokou, Dzanga-Ndoki National Park, Central Af...

Jabruson / Silkrubber / Landa / Ndembo (Funtumia elastica)seed feathery aerodynamic seed delivery system caught on a tree trunk in moss next to a termite tunnel. Bai Hokou, Dzanga-Ndoki National Park, Central Af...

Jabruson / Giant seed pod held in human hands, Bai Hokou, Dzanga-Ndoki National Park, Central African Republic.

Fabrice Cahez / Pasque Flower (Pulsatilla vulgaris) seed heads Aubrac, France, July.

Marie Read / Pinyon Jay (Gymnorhinus cyanocephalus), gathering Pinyon Pine seeds in autumn. Mono Lake Basin, California, USA, October.

Marie Read / Pinyon Jay (Gymnorhinus cyanocephalus), gathering Pinyon Pine seeds in autumn. Mono Lake Basin, California, USA, October.

Marie Read / Pinyon Jay (Gymnorhinus cyanocephalus), gathering Pinyon Pine seeds in autumn. Mono Lake Basin, California, USA, October.

Marie Read / Pinyon Jay (Gymnorhinus cyanocephalus), gathering Pinyon Pine seeds in autumn. Mono Lake Basin, California, USA, October.

Enrique Lopez-Tapia / Women carefully planting seeds in a field outside Paharpur. Bangladesh. June 2012.

Enrique Lopez-Tapia / Women planting seeds outside Paharpur with a man tilling the fields in the background, Bangladesh, June 2012.

Christophe Courteau / Faeces of wild Chimpanzee (Pan troglodytes schweinfurthii) on forest floor. Undigested seeds are spread throughout the forest by the Apes. Kibale National Park, Uganda

Christophe Courteau / Faeces of wild Chimpanzee (Pan troglodytes schweinfurthii) on forest floor. Undigested seeds are spread throughout the forest by the Apes. Kibale National Park, Uganda

Claudio Contreras / Dark-Eyed Junco (Junco hyemalis) with seed. San Pedro Martir National Park, Baja California Peninsula, Mexico, May.

Hanne & Jens Eriksen / Nutmeg manakin / Scaly breasted munia (Lonchura punctulata) juvenile feeding on seeds, Oman, November

Hanne & Jens Eriksen / Nutmeg manakin / Scaly breasted munia (Lonchura punctulata) adult feeding on seeds, Oman, November

Ernie Janes / Goat's beard (Tragopogon pratensis) low angle view of seedhead silhouetted at dawn, Norfolk, UK July

Ernie Janes / Goat's beard (Tragopogon pratensis) seedhead silhouetted at dawn, Norfolk, UK July

Ernie Janes / Grass seeds (Gramineae) sack of seeds about to be scattered by gardener, Norfolk, UK August

Colin Monteath / Inca laboratory possibly used for testing seeds and plants before planting in wider district, Urubamba Valley near Cuzco, Peru

Mark Taylor / Clark's Nutcracker (Nucifraga columbiana) eating seeds from its favourite food plant, the Whitebark Pine (Pinus albicaulis), Western USA

Colin Varndell / Goat's beard (Tragopogon pratensis) seedheads, Somerset, England, UK, June

David Pattyn / Hyacinth macaws (Anodorhynchus hyacinthinus) two feeding on their favourite palm-nuts in tree, Pantanal, Brazil, August