Back in 2009, I noticed a large concentration of bullfrog tadpoles in the northwest corner of the Wetlands. The tadpoles were congregated around a pipe which drains the higher ground above, particularly the Red Wolf Enclosure. I didn’t know why the tadpoles were gathered in this location but speculated that it was due to either the concentrations of dissolved oxygen in the water, higher temperature, algal growth (their main source of food), or a combination of those things. Something hadRead more