Monarch butterflies Danaus plexippus roosting.
To survive, this unique migratory insect must overwinter successfully at
a few sites in California and Mexico, where colonies may contain as many
as 100,000 individual. Deforestation and tourism threaten the roosts.
West Indian manatee Trichechus manatus
Endangered in coastal rivers and ocean waters of the southeastern U.S.,
it is more numerous in the Caribbean and South America. Powerboats,
poaching, and habitat loss have all taken a toll.
Red Wolf Canis rufus
This endangered species is smaller than the gray wolf and does not hunt
in packs. Historic range: southeastern and south-central U.S. It became
extinct in the wild before being reintroduced from captive populations in
1987.
Northern wild monkshood Aconitum noveboracense
This species is threatened by restrictive habitat requirements--cold,
humid sites in deep shade. It has been found at less than 30 sites in
Wisconsin, Iowa, Ohio and New York.
Black-footed ferret Mustela nigripes
Less than 100 of these nocturnal carnivores survive. A large area of
prairie and very many prairie dogs are needed to support just a few
ferrets. Ferrets declined with extensive killing of prairie dogs.
Ornate box turtle Terrapene ornata
This species is threatened in Iowa and endangered in Wisconsin.
White rhinoceros Ceratotherium sumum
Once widely ranging in African savannas south of the Sahara, hunters have
decimated this large mammal to collect its horn for trade. Only about
4000 white rhinos remain.
