The World Conservation Union published the 2004 Red List of Threatened Species and said that 15,568 species, an increase of 3,300 since last year, are threatened with extinction. Half of all freshwater turtles, one third of amphibians, a quarter of known mammals, and one in eight birds were listed.
The World Conservation Union published the 2004 Red List of Threatened Species and said that 15,568 species, an increase of 3,300 since last year, are threatened with extinction. Half of all freshwater turtles, one third of amphibians, a quarter of known mammals, and one in eight birds were listed.