Stomach content studies going back to 1913 suggest that the bullfrog preys on any animal it can overpower and stuff down its throat. - That sentence isn't simple at all. Stomach could use a link, preys is not simple, throat could be linked. Maybe change the sentence structure.
I'd suggest to get some very good copy-editor to check the spelling/grammar in that article. As you see above, I probably found several problems in that area and I fear that I didn't found everything. -Barrastalk 23:47, 3 August 2012 (UTC)
I have now Fixed all concerns. I hope now I have satisfied your comments. Best, Jonatalk to me 16:05, 4 August 2012 (UTC)
In the summary, you say bullfrogs can live up to four years. In the adult section, you say four to five. Confliction. DJDunsie (talk) 09:35, 6 August 2012 (UTC)
In the Taxonomy section, you say "They do this when they feel threaten". Threatened. DJDunsie (talk) 09:39, 6 August 2012 (UTC)
Human use section. "Usually, this is done in middle school." Schools are called different things in different countries so be specific. I presume this is just the US? "Usually, this is done in middle school in the US." DJDunsie (talk) 09:54, 6 August 2012 (UTC)