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| | === Viviparity === | | === Viviparity === |
| | + | |
| | + | * All Boas, Vipers, Garter Snakes, European Lizard and Slow Worm,some Skinks and Chameleons. |
| | + | * Involves placental exchange between the mother and foetus. |
| | + | * Corpus luteum is maintained and secretes progesterone, which inhibits oviduct contraction. |
| | + | * One clutch a year. |
| | + | * Gestation can last 1.5-6 months. |
| | + | * Added space of the foetus puts pressure on the gastrointestinal tract. |
| | + | ** Pregnant females rapidly lose condition. |
| | | | |
| | == The Egg == | | == The Egg == |