About Fleas | Fleas | CDC There are more than 2,500 flea species worldwide, with more than 300 species occurring in the United States However, only a few species of fleas affect people’s health These include the cat flea (Ctenocephalides felis), dog flea (Ctenocephalides canis), ground squirrel flea (Oropsylla montana), and Oriental rat flea (Xenopsylla cheopis)
Q: How many species of animals are there on this planet? Flexi Says: Although scientists have observed and classified around 1 2 million species of animals, scientists estimate that there are approximately 8 7 million living animal species on earth
Japan - Species - CEPF Japan has more than 65 reptile species, almost 30 of which are endemic The reptile fauna includes a number of threatened species, the Endangered Ryukyu black-breasted leaf-turtle ( Geoemyda japonica ,) and Critically Endangered Kikuzato's brook snake ( Opisthotropis kikuzatoi ) among them
Biodiversity Factsheet | Center for Sustainable Systems Of the estimated 8 7M eukaryotic (complex celled) species on Earth, 86% of land species and 91% of ocean species have not yet been described 5 Over the course of 250 years humans have taxonomically classified over 1 2M species 5 As of 2024, 57,033 plant and animal species are listed in the U S 6