Oh shit , I feel bad now . There is this guy who has spammed this video on here multiple times , and I thought it was you . My apologies , man . <| sep |> Who did you celebrate withHow long have you been in the US <| sep |> its good now . sorry for the rage . <| sep |> Tortoises and turtles are terrapin . Turtles , tortoises , and terrapin are all testudines . but american nomenclature which I use because I live in america uses turtle as the general family name for all of them . Tortoises are land dwelling and turtles are semiaquatic to aquatic . All testudines are air breathing , aquatic turtles are just good at being under water for long periods . So it ' s not that they are adapted to underwater breathing with structures like gills , its just that their limbs and lungs are more suited to water living . If you throw a tortoise in water , it will drown . A turtle would not . A land tortoise would simply have trouble resurfacing due to having more leg shaped legs rather than flipper shaped ones . A sea turtle would drown if you held it under water just like a tortoise would .