(1) What is the binomial (ie. 'scientific') name of silver wattle - aka blue wattle, or mimosa - native to southeastern Australia?
Answer: Acacia dealbata.
(2) In what year was the endangered Silver-headed antechinus (Antechinus argentus) first described as a species? (a) 1863 (b) 1913 (c) 1963 (d) 2013.
Answer: (d) 2013.
(3) What is the common name for the freshwater fish Bidyanus bidyanus?
Answer: Silver perch.
(4) What masked 1950s TV character, played by Clayton Moore, rode a horse called Silver?
Answer: The Lone Ranger.
(5) What Australian environmental job board will celebrate its silver anniversary on 15 October, 2023?
Answer: NRMjobs (yes – we will be 25 years old on Sunday).