About one-quarter of Australian frog species use one of these methods. Even within a single species, the time taken for tadpoles to develop can vary. There are a number of factors that determine this. One is the temperature of the water (within a comfort range, warmer water leads to faster development).
nerdnoun [ C ] uk â /nÉËd/ us â /nÉËd/ informal disapproving. âº a person, especially a man, who is not attractive and is awkward or socially embarrassing: He was a real nerd in high school - I can't believe he's so handsome now. âº a person who is extremely interested in one subject, especially computers, and knows a lot of facts about it: I'm a real grammar nerd.
Word History: The first known occurrence of the word nerd, undefined but illustrated, dates from 1950 and is found in If I Ran the Zoo, a children's book by Dr. Seuss (Theodor Seuss Geisel).