Fauna of Saskatchewan that lived in herds; Limnenetes anceps or a cud chewing plant eating sheep sized hippopotamus; "Hendryomeryx esulcatus", "Leptomeryx" "speciosus" and "L. mammifer" or small hornless ruminant; "Didelphodus serus" or meat eating marsupial about the size of a Virginia opossum or house cat; "Thylacaelurus campester"; "Wallia scalopidens" is a fossilised proscalopid insectivore bat; Auxontodon processus; Microparamys solidus The Cretaceous–Paleogene boundary marks the Cretaceous–Paleogene extinction event which saw the extinction of many of these prehistoric animals which remain only as fossil remnants. Mammal species differ between the various ecoregions of Saskatchewan. Members of six orders of placental mammals which inhabit Saskatchewan. They
Chewing gum modern cities, free of gum. Various teams of researchers have developed gum that is less adhesive and degrades within days or weeks. One example, Rev7 Gum, was briefly for sale from 2010 to 2012. Many schools do not allow chewing gum because students often dispose of it inappropriately (leaving it under desks and chairs, behind vending machines, etc.). The chewing may also pose a distraction to class, and the gum might carry diseases or bacteria from other students. The Singapore government outlawed chewing gum in 1992 citing the danger of discarded gum being wedged in the sliding doors of underground