My Russian tortoise Natasha has a little tail but she has been bobbing her head and biting my other female tortoise. And just the other day I saw her mounting my female and her mouth was open and she was squeaking. I want to say that Natasha is a boy but she has a tiny tail about half an inch long so I'm still not sure. She is 7" long and a medium thickness. She isn't huge looking like a normal female and she isn't as small as a normal boy. I don't know how to post a picture from my phone but any help about whether she is indeed a he would be wonderful