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This is a basic scientific principle that applies to most, if not all, of nature. There's always a winner in the sperm race, no matter how "close" it seems. The winner is the father. The loser(s) die off.
There is no such thing as "fraternal" twins in ball pythons. For fraternal twins to occur, it's still two embryos fertilized by two different sperm. That means two different eggs, or sluggy eggs that managed to get attached. Identical twins happen as a division of one embryo to begin developing into two embryos, far more common, at least in oviparids.
Last edited by Archimedes; 05-03-2013 at 07:24 AM.
1.1 Ball Pythons
a) Calliope 0.1, Banana Ball, 2018/19 season, 600g
b) Geralt 1.0 Chocolate Sable Mojave pos. Trick ball, May 27th 2020
3.2 Cats (Fury, Leviathan, Walter, Chell, Amelie); 2.0 Dogs (Bjorn, Anubis); 2.1 Ferrets (Bran, Tormund, Arya); 0.1 Beardie (Nefertiti); 0.1 Slider Turtle (Species uncertain) (Papaya); 2.0 Hermit Crabs (Tamatoa, Sushi); 0.1 Conure (Mauii); Two Axolotyls (Quetzl and Unnamed); Two Tree Frogs (Pluto and Colossus); One Anole (Zeus); One Crestie (Noferatu); 3.0 Guinea Pigs (Paco, Poncho and Piccolo); 0.1 Pink Toe T (Azula)
Fish:
1.1 Oscar Cichlids (Rocky 1.0, hx2020, Red Fire, and Bubble 0.1, hx2019, Tiger), 1.1 Convict Cichlids (Hurley and Sloane), 0.1 Strawberry Peacock Cichlid (Comet), Two Plecos, Rubby the Rubbernose Pleco and Trinidad the common Pleco, 2.0 Upside Down Catfish (Poseidon, Neptune), One Red Parrot Cichlid (Firefly), 1.0 Betta Fish (Jenkins), 2.2 Cherry Barbs ("The Worst"), 1.0 Electric Blue Acara (Goldeneye)
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