Wednesday, February 13, 2013

Moving (with new legs)





The axolotls are growing healthily! Their water needed changing, and their tank was too small, so we decided to move them to a larger, cleaner tank. After siphoning water from the adult axolotls' tank and painstakingly capturing and releasing baby axolotls for hours, the job was complete. The babies are excited to be in their new tank; it is awesome to watch them eating (whereas the last tank was too crowded) and being able to see the entire population without stirring the water. The white ones are even relatively transparent!I know of one death and only a few eggs that haven't hatched. This is an extremely healthy, strong, orange-bellied group of neotenic amphibians.
On some, we can already see little front legs budding. This exciting milestone also begins one of the most treacherous examples of Darwin's research, however. Before reaching maturity, axolotls enter a cannibalistic stage in which they feed on their weaker brethren. We are currently debating whether to and how to split them up. It is the cruelty of the natural world. Hopefully, since we are keeping them very well fed, there will not be too many casualties. We are beginning an adult brine shrimp culture in another tank to keep up with our rapidly growing axolotls. Using a dark blue bottle, a tank of warm salt water, and our current brine shrimp hatching expertise, we should be growing brine shrimp within the next week.




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