Peg wrote Could they have left the pond or did something kill
them all off?

Usually they have their back legs a while before they get their front legs.
After their front legs appear it takes about two days to absorb their tail and
they take off.

Predators for tadpoles are birds, snakes, bullfrogs, some insect larvae. (No
fish in the pond I'm assuming.) A predator may have visited their little pond
if you didn't see any front leg development.

They sound like toad tadpoles and they do change rapidly.


k30a
and the watergardening labradors
http://www.geocities.com/watergarden...dors/home.html