Tuesday, March 30, 2010

Hatchlings... (day 6)

Recently I collected a small part of an egg mass where the embryos were just beginning to hatch.  I set up an artificial pond in an aquarium to follow their development.  On day 6 they have all grown a little larger, the tissues are becoming more complex, more patterns of pigmented cells are emerging...

They are very active and spend most of their time eating.  It is rare that they stay in one place for more than a few seconds.

One particularly interesting note is that their mouth area seems to be changing much faster than the rest of the body.

There are more images following their development here: http://tanukifu.com/Animals/hatchlingsMarch2010