These days, when our planet faces a number of serious problems such as uncontrolled overpopulation, devastating pollution, and unprecedented climate change, more and more animals are becoming endangered and extinct.
In fact, the species loss is currently happening at a rate more than 1,000 times greater than what would be natural. Consequently, future generations might never get to see animals that we could watch in nature when we were younger. To raise awareness about the heartbreaking state of Mother Earth and some of her most endangered animal species, we created this post with 25 Rare Animals Nearly Impossible To See In The Wild.
Dusky Gopher Frog

Also known as the Mississippi gopher frog, the dusky gopher frog is a very rare species of frog native to the southern US. This medium-sized, stocky frog once was common in parts of Alabama, Mississippi, and Louisiana. However, its current population consists of less than 250 individuals living in two small ponds in southern Mississippi.
California Condor

With a wingspan of up to 3 m (10 ft), the California condor is the largest bird in North America. In 1987, this magnificent bird became extinct in the wild when the last 27 individuals were captured and put in breeding programs. Four years later, the bird was reintroduced to its natural habitat. Despite these re-population efforts, its wild population is still very small.
Pygmy Three-Toed Sloth

Also known as the monk sloth or the dwarf sloth, the pygmy three-toed sloth is a critically endangered species of the sloth. This curious animal has a very restricted range as it can only be found on a tiny island, Isla Escudo de Veraguas, located off mainland Panama. The entire population of this species is estimated at some 80 individuals.
Mexican Wolf

Commonly referred to as “el lobo,” the Mexican wolf is a subspecies of the gray wolf. These canids once numbered in thousands, but they were wiped out in the US by the mid-1970s, with just a handful existing in zoos. In 1998, a small group of Mexican wolves was released back into the wild in Arizona, but their numbers have been growing very slowly.
Madagascan Fish Eagle

With a wingspan of up to 180 cm (71 in) and weight of up to 3.5 kg (7.7 lb), the Madagascan fish eagle is a large bird of prey local to Northwest Madagascar. Constantly threatened by habitat destruction and persecution, the current wild population of this beautiful bird is thought to be around just 120 breeding pairs.
Photos: 25. U.S. Department of Agriculture, Dusky Gopher Frog-a, CC BY 2.0, 24. DickDaniels (http://carolinabirds.org/), California Condor RWD, CC BY-SA 3.0, 23. Max Pixel (public domain), 22. en.wikipedia.org (public domain), 21. Francesco Veronesi from Italy, Madagascan Fish Eagle – Ankarafantsika – Madagascar S4E9501 (15111141738) (1), CC BY-SA 2.0, 20. Kyle Bedell, Astrochelys radiata -Roger Williams Park Zoo, USA-8a, CC BY 2.0, 19. Alchetron, CC BY-SA 3.0, 18. Claudia Feh, Przewalskis horse 02, CC BY-SA 4.0, 17. JJ Harrison (jjharrison89@facebook.com), Lathamus discolor Bruny 1, CC BY-SA 3.0, 16. Simon Fraser University – University Communications, Pristis pristis townsville, CC BY 2.0, 15. U.S. Fish and Wildlife Service Headquarters, Florida panther (7013874693), CC BY 2.0, 14. Dominic Sherony, Honduran Emerald (Amazilia luciae) (2495402213), CC BY-SA 2.0, 13. International Rhino Foundation, Sumatran rhinoceros four days old, CC BY 2.0, 12. Wikimedia commons (public domain), 11. wikimedia commons (public domain), 10. http://www.flickr.com/photos/deepphoto/ d_proffer, Susa group, mountain gorilla, CC BY 2.0, 9. Gyps_rueppellii_-Nairobi_National_Park,_Kenya-8.jpg: Jorge Láscar from Bogotá, Colombia derivative work: Snowmanradio (talk), Gyps rueppellii -Nairobi National Park, Kenya-8-4c, CC BY-SA 2.0, 8. Granitethighs, Lord Howe Island stick insect Dryococelus australis 10June2011 PalmNursery, CC BY-SA 3.0, 7. Keven Law, Leopard in the Colchester Zoo, CC BY-SA 2.0, 6. Prajwalkm, Great Indian bustard, CC BY-SA 3.0, 5. Wikimedia commons (public domain), 4. Ray, White-Cheeked Gibbon (Female), CC BY-SA 2.0, 3. JRProbert, Hirola head with sub-orbital glands, CC BY-SA 4.0, 2-1. Wikimedia commons (public domain)