A large tadpole from Quebrada Cerro in Las Cruces. This could be a tadpole of the brilliant forest frog (Lithobates warszewitshii), but I haven’t keyed it out.

Tadpoles were abundant in this stream, which drains primary wet forest, whereas they are fairly scarce in other streams in the preserve, possibly because fish didn’t appear to be present in Quebrada Cerro–in most other streams, fish, particularly the guppy, are abundant.