Getting your questions ready
Getting your questions ready
All 10 questions with answers and explanations. Play this daily
Q 01A fairground prize named Tish lived to 43, a record for which kind of pet?
A goldfish
A goldfish. Tish was won at a fairground in 1956 and lived until 1999, so long that his scales turned silver.
Q 02Which rodent can live more than 30 years?
Naked mole rat
Naked mole rats have lived past 30 in laboratories, about ten times longer than a mouse of similar size, and show almost no rise in death risk with age. They also seem nearly immune to cancer.
Q 03Which animal can age backwards, returning to its juvenile form?
A jellyfish
A jellyfish smaller than a fingernail, Turritopsis dohrnii, can turn its adult body back into a polyp when stressed or injured, then grow up again; in theory the cycle could repeat indefinitely, earning it the nickname immortal jellyfish.
Q 04Which island group is famously home to giant tortoises that can live well over a century?
Galápagos
Galápagos tortoises live over 100 years in the wild, and a captive one, Harriet, was estimated at more than 170 when she died in 2006.
Q 05Which North Pacific kelp grazer, once thought to live about a decade, can reach 200 years?
Red sea urchin
Red sea urchin. Ageing studies showed they can live more than 100 years, and some found off Canada were around 200 years old.
Q 06Which New Zealand reptile, Henry, became a first-time father at about 111?
Tuatara
Tuatara. Once so aggressive he had to be kept alone, Henry changed after a cancerous growth was removed, and in 2009 he fathered hatchlings with Mildred.
Q 07Which bony fish has been aged to 205 years?
Rougheye Rockfish
Rougheye rockfish have been aged to 205 years. Slow growth in cold, deep North Pacific water is what allows the long lifespan.
Q 08Which whale can live past 200 years?
Bowhead Whale
Bowhead Whale. A whale caught in 2007 still carried the tip of a bomb lance made between 1879 and 1885, fired into it over a century before.
Q 09Which vertebrate has been estimated to live roughly 400 years?
Greenland Shark
Radiocarbon dating of eye-lens proteins in 2016 put one Greenland shark at roughly 400 years old, the longest-lived vertebrate known. They grow about a centimetre a year and may not mature until 150.
Q 10Which sea creature was found to be 507 years old by counting rings in its shell?
A clam
A clam. The ocean quahog nicknamed Ming, dredged off Iceland in 2006, was first dated at 405, then 507, but it had died when researchers froze it.