Too many to say really, any more specific?
There are 4 species and 11 subspecies.
Yes, many turtles, especially the carnivorous species such as snapping turtles, will eat smaller turtles.
Yes certain species of turtles are pets.
No, one of the deciding factor when it comes to categorizing animals into different species is whether or not they can produce offspring. Different kinds of dogs can "mix" even if they are different breeds because they are still part of the same species. While all turtles are part of the same "Order", in biological terminology, if the turtles are classified as different species, they will not produce viable offspring.
Yes; all 7 Species.
There are about 260 species of turtles, tortoises, and terrapins.
The Turtles are Red-Ear Sliders
no they are two different species
No turtle species is considered "harmful" in the strictest sense of the word. Some species, such as snapping turtles and softshell turtles may act aggressively towards humans if disturbed and should therefore not be kept as pets by most individuals.
Yes
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lizards turtles snakes