Jess, border terrier dog, a British breed from the borders between England and Scotland

Spotted Hyena resting, Grumeti, Tanzania

Forest Kingfisher perched on a branch in North Queensland, Australia

Cows in dry stone wall paddock near Ballinrobe, County Mayo, Ireland

European Eagle Owl, Charlton Park, Wiltshire, England, United Kingdom

Antilopine Wallaroo, Queensland, Australia

Gray-backed Fiscal (shrike), Grumet, Tanzania, East Africa

Cheetah, Grumeti, Tanzania, East Africa

Malachite kingfisher bird and papyrus in the Okavango Delta, Botswana, Africa

Cheetah, Grumeti, Tanzania, East Africa

African Fish-Eagle, Grumeti, Tanzania, East Africa

Red-billed Hornbill, Grumet, Tanzania, East Africa

Hooded Vulture, Grumet, Tanzania, East Africa

Female Jackal, Grumeti, Tanzania

Soldier on duty in Abu Dhabi

Thomsons Gazelles, Grumeti, Tanzania

Young brown calf in buttercup meadow, County Clare, West of Ireland

Black-crowned Night Heron, Nycticorax nycticorax, in The Everglades, Florida, USA

Herd of migrating Blue Wildebeest, Grumeti, Tanzania

Herd of Burchell's Zebras in Moremi National Park , Botswana

United States Military Guard of Honour with rifles raised parade on the White House Lawn, Washington, USA

Thomsons Gazelles, Ngorongoro Crater, Tanzania

Sign, Polar bear alert at Hudson Bay, Churchill, Manitoa, Canada, North America

Cheetah, Grumeti, Tanzania, East Africa

Gray-backed Fiscal (shrike), Grumet, Tanzania, East Africa

Topi, Serengeti, Tanzania

Gray-backed Fiscal (shrike), Grumet, Tanzania, East Africa

Tawny Eagle, Grumeti, Tanzania

A herd ofGiraffes in Moremi National Park , Botswana

Common Plains Zebra (Grant's), Ngorongoro Crater, Tanzania

Cheetah, Grumeti, Tanzania, East Africa

Usambiro Barbet, Grumet, Tanzania, East Africa

Cruise ship passing harbour, Alert Bay, British Columbia, Canada, North America

Tawny Eagle, Grumeti, Tanzania

European eagle owl (bubo bubo) perched in heather, looking alert, scotland, captive

European eagle owl (bubo bubo) perched in heather, looking alert, scotland, captive

Alpine Marmot, Marmota marmota

European Souslik (Spermophylus citellus) mouth open, looking alert, Bulgaria

Lion (panthera leo) male looking alert, masai mara, kenya

Emergency flare to attract incoming Sea King Helicopter, Lake District, Cumbria, England, United Kingdom, Europe

Red fox, Vulpes vulpes, cub, Ayrshire, Scotland, UK

Accredited Search dogs used by handlers of the Search and Rescue Dog Association, United Kingdom, Europe

Emergency flare to attract incoming Sea King Helicopter, Lake District, Cumbria, England, United Kingdom, Europe

pointer dog: pointing, alert

Mallard (Anas Pltyrhynchos), alert in long grass while it is raining.

Inuit Settlement with two local Captive Huskie dogs watching a whale cleanse, Lorino Village (Chukotskiy Peninsular) Russia, Asia.

Curious king penguin (Aptenodytes patagonicus) breeding and nesting colony at St. Andrews Bay on South Georgia, Southern Ocean.

roe deer (c): capreolus capreolus amongst grass ligatne, gauja np, latvia

Scenes from the harbor on a foggy day in Alert Bay on Cormorant Island, British Columbia, Canada. No model or property releases.

Emergency flare to attract incoming Sea King Helicopter, Lake District, Cumbria, England, United Kingdom, Europe

Hamatsa dancers from the Kwakwa_ka_'wakw first nations people in Alert Bay, British Columbia, Canada. No model or property releases for this image.

American mink (Mustela vison). Non-native species in the UK considered a threat to ground-nesting birds and water voles in particular. Widespread as a result of escapes from fur farms since the 1950s. Hebrides, Scotland

Hamatsa dancers from the Kwakwa_ka_'wakw first nations people in Alert Bay, British Columbia, Canada. No model or property releases for this image.

A Border Collie dog in Bluebells, Ambleside, Cumbria, England, United Kingdom, Europe

Scenes from the harbor on a foggy day in Alert Bay on Cormorant Island, British Columbia, Canada. No model or property releases.

White Storks (Ciconia ciconia) nesting on electricity pylons in the Coto Donana in Andalucia, Spain.

red squirrel, sciurus vulgaris, on log, norway, europe

A golden eagle

Scenes from the harbor on a foggy day in Alert Bay on Cormorant Island, British Columbia, Canada. No model or property releases.

A Border Collie dogs eye

Fishing fleet at harbor in Alert Bay, British Columbia, Canada.

American mink (Mustela vison). Non-native species in the UK considered a threat to ground-nesting birds and water voles in particular. Widespread as a result of escapes from fur farms since the 1950s. Hebrides, Scotland

golden eagle, aquila chrysaetos, immature on carcass, norway

Mother and baby Plains Zebra (Equus quagga, formerly Equus burchelli), stands alert, ears forward looking for danger. Young Zebra stays close to mother. Kagera National Park, Rwanda, East Africa

Kings Cross tube station closed due to a terrorist alert, London, England, United Kingdom, Europe

Single Plains Zebra (Equus quagga, formerly Equus burchelli), stands alert, ears forward looking for danger. Kagera National Park, Rwanda, East Africa

Accredited Search dogs used by handlers of the Search and Rescue Dog Association, United Kingdom, Europe

Fishing fleet at harbor in Alert Bay, British Columbia, Canada.

Hamatsa dancers from the Kwakwa_ka_'wakw first nations people in Alert Bay, British Columbia, Canada. No model or property releases for this image.

American mink (Mustela vison). Non-native species in the UK considered a threat to ground-nesting birds and water voles in particular. Widespread as a result of escapes from fur farms since the 1950s. Hebrides, Scotland

Mountain hare on Ben Stack in Sutherland, Highlands, Scotland, United Kingdom, Europe

Reflection of Lindblad staff on the ocean's surface in Alert Bay, British Columbia, Canada. No model or property releases for this image.

Hamatsa dancers from the Kwakwa_ka_'wakw first nations people in Alert Bay, British Columbia, Canada. No model or property releases for this image.

Mountain hare on Ben Stack in Sutherland, Highlands, Scotland, United Kingdom, Europe

Fishing fleet at harbor in Alert Bay, British Columbia, Canada. No model or property releases for this image.

red deer, cervus elaphus

Red Deer (Cervus elaphus) pair of hinds standing looking alert in heavy rain. Isle of Mull, Argyll, Scotland, UK

Fishing fleet at harbour in Alert Bay, British Columbia, Canada. No model or property releases for this image.

Eurasian river otter (Lutra lutra). With her only cub nearby, this mother is displaying great alertness. Hebrides, Scotland

Fishing fleet at harbor in Alert Bay, British Columbia, Canada.

Fishing nets piled on the dock in Alert Bay, British Columbia, Canada.

Portrait of alert dog

Portrait of cat

Caucasian man holding saddle and blanket looking at dog

Dog sitting on bed near suitcase

Portrait of alert dog

Portrait of dog looking away

Portrait of alert dog

Portrait of alert squirrel on log

Strawberry Poison Frog (Dendrobates pumilio), adult, Bastimentos National Park, Bocas del Toro, Panama. The strawberry poison frog or strawberry poison-dart frog (Oophaga pumilio or Dendrobates pumilio) is a species of small amphibian poison dart frog found in Central America. It is common throughout its range, which extends from eastern central Nicaragua through Costa Rica and northwestern Panama. The species is often found in humid lowlands and premontane forest, but large populations are also found in disturbed areas such as plantations. The strawberry poison frog is perhaps most famous for its widespread variation in coloration, comprising approximately 15���30 color morphs, most of which are presumed to be true-breeding. O. pumilio, while not the most poisonous of the dendrobatids, is the most toxic member of its genus. The species is most diverse in Panama with varieties in vivid shades of all red, orange, blue, yellow or green, green and yellow, white with red, orange or black and spotted varieties. The most colorful mix is found in Isla Bastimentos Marine National Park though not all in one place. Colors vary by location. A beach on the north side of the island is named after the species. Two of Southern Explorations' Panama tours visit red frog habitat. Both the eight-day Panama Adventure trip and eleven-day Panama Highlights trip spend time in Isla Bastimentos Marine National Park and the former also goes to Red Frog Beach. The red frog is not as poisonous as some of its cousins and is not a threat to humans. It subsists on a diet of ants that dine on poisonous plants, providing the red frog its protective skin toxin. Males attract females with a loud quick chirp. To hear the distinctive sound before you depart on your Panama tours, go to the University of Michigan Museum's biodiversity website (www.animaldiversity.ummz.umich.edu.) After birth, the tadpoles climb aboard the mother who deposits them in different protected areas where she retu

Black-tailed Prairie Dogs at Roberts Prairie Dog Town in Badlands National Park, South Dakota.

A red fox sniffs on some scentmarks along dead reeds, Yukon Territory

A red fox is laying in the snow and looks straight at the camera (Vulpus Vulpus), Yukon Territory

White-tailed Deer (Odocoileus virginianus) drinking water, Texas.

A young red fox (Vulpus vulpus) is all alert as he is watching his surroundings and listening for any sounds. Yukon Territory, Canada

White-tailed deer

White-tailed deer

Close up EKG monitor in icu room.

Emergency call services allow seniors living alone to alert a call center, thanks to a call button connected to the telephone

Emergency call services allow seniors living alone to alert a call center, thanks to a call button connected to the telephone