Sylvain Cordier / Monarch butterfly (Danaus plexippus), wintering from November to March in Oyamel pine forests (Abies religiosa) Monarch Butterfly Biosphere Reserve, Mexico.
Ingo Arndt / Monarch butterflies (Danaus plexippus) flying in warmth of midday sun, overwintering colony in Michoacan, Mexico
01198077
Ingo Arndt / Monarch butterflies (Danaus plexippus) drinking from pool of water, overwintering colony, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies gathering to drink water and take up minerals, Michoacan, Mexico
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Jack Dykinga / Monarch Butterflies (Danaus plexippus) covering the trunk of a coniferous tree, Sierra Chincua Monarch Butterfly Biosphere Reserve, Michoacan, Mexico, Central America
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Patricio Robles Gil / Monarch (Danaus plexippus) butterfly, mass flying in wintering grounds, Monarch butterfly Biosphere Reserve, Michoacan, Mexico
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Thomas Mangelsen / Monarch (Danaus plexippus) butterfly group perching on a female tourist, El Rosario Monarch Butterfly Sanctuary, Mexico
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Tim Fitzharris / Monarch (Danaus plexippus) butterflies on lupine, Michoacan, Mexico
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Claudio Contreras / Michoacan pollardia orchid (Pollardia michuacana) flower. Cultivated, found in mixed forest in central and southern Mexico, Guatemala and Honduras, March
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Sylvain Cordier / RF - Monarch butterfly (Danaus plexippus), wintering from November to March, in Oyamel pine forests (Abies religiosa) Monarch Butterfly Biosphere Reserve, Mexico. (This image may be licensed either a...
01604898
Sylvain Cordier / RF - Monarch butterfly (Danaus plexippus), wintering from November to March, in Oyamel pine forests (Abies religiosa) Monarch Butterfly Biosphere Reserve, Mexico. (This image may be licensed either a...
01604897
Sylvain Cordier / RF - Monarch butterfly (Danaus plexippus), wintering from November to March, in Oyamel pine forests (Abies religiosa) Monarch Butterfly Biosphere Reserve, Mexico. (This image may be licensed either a...
Ingo Arndt / Dead Monarch butterflies (Danaus plexippus) on the ground killed by changing weather conditions bringing wet and cold weather, Michoacan, Mexico
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Ingo Arndt / Monarch butterflies (Danaus plexippus) covering tree trunk, early morning, overwintering colony, Michoacan, Mexico
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Ingo Arndt / Monarch butterflies (Danaus plexippus) mating, Michoacan, Mexico. Females lay their eggs on their journey north.
01198332
Ingo Arndt / Mass of Monarch butterflies (Danaus plexippus) flying, overwintering colony, Michoacan, Mexico
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Ingo Arndt / Monarch butterflies (Danaus plexippus) covering tree trunk, early morning, overwintering colony, Michoacan, Mexico
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Ingo Arndt / Aerial view of a colony of Monarch butterflies (Danaus plexippus) overwintering in trees, Michoacan, Mexico
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Ingo Arndt / Monarch butterflies (Danaus plexippus) covering tree trunk, early morning, overwintering colony, Michoacan, Mexico
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Ingo Arndt / Aerial view of the coniferous foest with Oyamel fir trees where Monarch butterflies (Danaus plexippus) overwinter, central highlands, Michoacan, Mexico
Ingo Arndt / Aerial view of the coniferous forests, with Oyamel fir trees where Monarch butterflies (Danaus plexippus) overwinter, central highlands, Michoacan, Mexico
01198041
Ingo Arndt / Branch of tree covered with clusters of Monarch butterflies (Danaus plexippus), due to it being early morning their wings are closed, later they will open to bask in the sun, Michoacan, Mexico.
01198053
Ingo Arndt / Oyamel fir trees (Abies religiosa) growing in pots in nursery for a reforestation programme to replant after illegal logging has destroyed areas of mountain forests where Monarch butterflies (Danaus p...
01198040
Ingo Arndt / Tree trunk covered with members of a colony of Monarch butterflies (Danaus plexippus), some of them have their wings open and are basking in the sun, overwintering colony, Michoacan, Mexico
01198050
Ingo Arndt / Monarch butterflies (Danaus plexippus) gathered round water to drink, overwintering colony, Michoacan, Mexico
01198078
Ingo Arndt / Tree covered with Monarch butterflies (Danaus plexippus), early morning (before dawn) their wings are closed, Michoacan, Mexico.
Ingo Arndt / Photographer Ingo Arndt with the pilot of an ultralight aircraft on a flight to photograph aerial images of Monarch butterfly colonies, Michoacan, Mexico
01198038
Ingo Arndt / Trees covered in Monarch butterflies (Danaus plexippus) from the largest colony, El Rosario, Michoacan, Mexico
01198039
Ingo Arndt / Tree trunk covered in Monarch butterflies (Danaus plexippus) some of them have opened their wings and are basking in the sun, overwintering colony, Michoacan, Mexico
01198037
Ingo Arndt / Aerial view of a colony of Monarch butterflies (Danaus plexippus) in trees, El Rosario, Michoacan, Mexico. At midday they open their orange coloured wings and bask in the sun which makes the trees ap...
01198073
Ingo Arndt / Monarch butterflies (Danaus plexippus) drinking from pool of water, overwintering colony, Michoacan, Mexico
01198074
Ingo Arndt / Monarch butterflies (Danaus plexippus) drinking from pool of water, overwintering colony, Michoacan, Mexico. Not available for print sales
01198044
Ingo Arndt / Monarch butterflies (Danaus plexippus) flying and resting in trees, midday, overwintering colony, Michoacan, Mexico
01198076
Ingo Arndt / Monarch butterflies (Danaus plexippus) drinking from pool of water, overwintering colony, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterfly group flying, during a warm day when the overwintering period draws to an end large numbers become active, Michoacan, Mexico
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Thomas Marent / Monarch (Danaus plexippus) butterflies roosting in trees at night, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterfly overwintering areas that have been destroyed by illegal logging, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterfly resting on flower in overwintering area, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies flying during a warm day, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies flying during a warm day, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies flying during a warm day, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies flying during a warm day, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies in overwintering colony, some of which are basking in the sun, Michoacan, Mexico
Ingo Arndt / Monarch (Danaus plexippus) butterfly basking in the midday sun, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies basking in the midday sun, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterfly cluster, some individuals are basking while most have their wings closed, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies with closed wings in overwintering colony, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterfly habitat restoration, man holding plants that will be used to replant areas of forest to re-establish overwintering sites, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterfly habitat restoration, man holding plants that will be used to replant areas of forest to re-establish overwintering sites, Michoacan, Mexico
00762810
Ingo Arndt / Monarch (Danaus plexippus) butterfly overwintering areas that have been destroyed by illegal logging, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies gathering to drink water and take up minerals, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies gathering to drink water and take up minerals, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterfly drinking water and taking up minerals, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies gathering to drink water and take up minerals, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies gathering to drink water and take up minerals, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies flying during a warm day, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterfly dead on the ground after wet and cold weather, Michoacan, Mexico
00762813
Ingo Arndt / Monarch (Danaus plexippus) butterflies dead on the ground after wet and cold weather, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies with closed wings in overwintering colony, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies with closed wings in overwintering colony, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterflies in trees, El Rosario, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterfly overwintering site in highland forest, Michoacan, Mexico
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Ingo Arndt / Monarch (Danaus plexippus) butterfly overwintering site in highland forest, Michoacan, Mexico
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Jack Dykinga / Monarch Butterflies (Danaus plexippus) covering the trunk of a tree in coniferous forest, Sierra Chincua Monarch Butterfly Biosphere Reserve, Michoacan, Mexico, Central America
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Jack Dykinga / Monarch Butterflies (Danaus plexippus) flying and landing on trees beneath a coniferous forest, Sierra Chincua Monarch Butterfly Biosphere Reserve, Michoacan, Mexico, Central America
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Jack Dykinga / Monarch Butterflies (Danaus plexippus) covering the trunk of a tree in coniferous forest, Sierra Chincua Monarch Butterfly Biosphere Reserve, Michoacan, Mexico, Central America
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Jack Dykinga / Monarch Butterflies (Danaus plexippus) clustering on trees in a coniferous forest, Sierra Chincua Monarch Butterfly Biosphere Reserve, Michoacan, Mexico, Central America
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Jack Dykinga / Monarch Butterflies (Danaus plexippus) on a tree trunk in coniferous forest, Sierra Chincua Monarch Butterfly Biosphere Reserve, Michoacan, Mexico, Central America
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Jack Dykinga / Monarch Butterflies (Danaus plexippus) in the trees of a coniferous forest, Sierra Chincua Monarch Butterfly Biosphere Reserve, Michoacan, Mexico, Central America
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Jack Dykinga / Dead Monarch Butterflies (Danaus plexippus) lying on the ground, killed by a January freeze. Sierra Chincua Monarch Butterfly Biosphere Reserve, Michoacan, Mexico, Central America
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Jack Dykinga / Monarch Butterflies (Danaus plexippus) flying and landing on plants beneath a coniferous forest, Sierra Chincua Monarch Butterfly Biosphere Reserve, Michoacan, Mexico, Central America
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Thomas Marent / Monarch (Danaus plexippus) butterfly cluster, Michoacan, Mexico
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Thomas Marent / Monarch (Danaus plexippus) butterfly cluster, Michoacan, Mexico
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Thomas Marent / Monarch (Danaus plexippus) butterfly cluster, Michoacan, Mexico
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Thomas Marent / Monarch (Danaus plexippus) butterfly cluster, Michoacan, Mexico
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Thomas Marent / Monarch (Danaus plexippus) butterfly cluster, Michoacan, Mexico
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Thomas Marent / Monarch (Danaus plexippus) butterfly colony, Michoacan, Mexico
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Thomas Marent / Monarch (Danaus plexippus) butterfly cluster, Michoacan, Mexico
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Thomas Marent / Temperate landscape, Michoacan, Mexico
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Patricio Robles Gil / Monarch (Danaus plexippus) butterfly, drinking from pool in wintering grounds, Monarch butterfly Biosphere Reserve, Michoacan, Mexico
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Patricio Robles Gil / Monarch (Danaus plexippus) butterfly, mass gathered in trees in wintering grounds, Monarch butterfly Biosphere Reserve, Michoacan, Mexico