Mammals:
* African Forest Elephant: Habitat loss and poaching for ivory.
* Amur Leopard: Habitat loss and poaching.
* Sumatran Orangutan: Deforestation and illegal wildlife trade.
* Black Rhino: Poaching and habitat loss.
* Javan Rhino: Poaching and habitat loss.
* Mountain Gorilla: Habitat loss, poaching, and disease.
Birds:
* California Condor: Habitat loss, lead poisoning, and poaching.
* Hawaiian Goose (Nene): Habitat loss and introduced predators.
* Kakapo: Habitat loss, introduced predators, and low reproductive rates.
* Spix's Macaw: Habitat loss and illegal wildlife trade.
* Red-Crested Crane: Habitat loss and hunting.
Reptiles:
* Leatherback Sea Turtle: Bycatch in fisheries, habitat loss, and pollution.
* Hawksbill Sea Turtle: Poaching for their shells and habitat loss.
* Komodo Dragon: Habitat loss and poaching.
* Saltwater Crocodile: Hunting and habitat loss.
* Galapagos Giant Tortoise: Introduced species and habitat loss.
Amphibians:
* Golden Toad: Habitat loss and climate change.
* Panamanian Golden Frog: Chytrid fungus and habitat loss.
* Southern Corroboree Frog: Chytrid fungus and habitat loss.
* Harlequin Frog: Chytrid fungus and habitat loss.
Fish:
* Atlantic Bluefin Tuna: Overfishing and habitat loss.
* White Sturgeon: Habitat loss and overfishing.
* Giant Grouper: Overfishing and habitat loss.
* Coral Reef Fishes: Climate change and pollution.
* Chinese Paddlefish: Overfishing and habitat loss.
Insects:
* Monarch Butterfly: Habitat loss and pesticide use.
* Honeybee: Colony collapse disorder and pesticide use.
* Giant Water Bug: Habitat loss and pollution.
* Stag Beetle: Habitat loss and pesticide use.
Where to Find More Information:
* IUCN Red List: The most comprehensive list of threatened species, with information on their conservation status and threats. [https://www.iucnredlist.org/](https://www.iucnredlist.org/)
* WWF: Provides information on endangered species and conservation efforts. [https://www.worldwildlife.org/](https://www.worldwildlife.org/)
* Wildlife Conservation Society: Works to save wildlife and wild places around the world. [https://www.wcs.org/](https://www.wcs.org/)
* National Geographic: Offers articles, photos, and videos on endangered species. [https://www.nationalgeographic.com/](https://www.nationalgeographic.com/)
It's important to remember that this is just a small sample of the thousands of species at risk of extinction. It's a serious issue that requires our attention and action.