These bumpy big-headed fellows were reminiscent of toads, except that they could jump a lot farther. True to their name, they were one of the most common frog species in the Peruvian rainforest. This one is hunkering down because it's under the impression that doing so will prevent the big bad photographer from being able to see it.

Here is a complete list of the herps I saw in the wild on my 2013 MT Amazon Expeditions trip.

I'm guessing that this tiny little mud-mimicking frog was a very young Oreobates quixensis, but I'm not certain.

Here's a full-grown adult looking oh so very earnest. The Common Big-headed Rain Frog is a sincere frog.

A year later, here's another tiny little one. This is either another very young Oreobates quixensis, or another of the same little mud-mimicking frog that I saw last year.

Here is a complete list of the herps I saw in the wild on my 2014 MT Amazon Expeditions trip.

I didn't see as many of these frogs this time as I did last year, but they were still among the most commonly-seen frogs. Here's a medium-sized one that Matt Cage noticed while we were hiking together.

Here's one more of these cute big-headed frogs, from my third trip to the area.

My Travelogues and Trip Lists page includes a complete list of the herps I saw in the wild on my 2016 MT Amazon Expeditions trip.

Another year, another Big-headed Rain Frog. Still cute!

Another one: also cute. I think I can feel myself running out of things to say about Oreobates quixensis.

And yet, I must continue to say things about them. Or I could stop putting photos of them on this website, but where's the fun in that?