Can fish learn simple math? They can when a treat is involved

Can fish learn simple math? They can when a treat is involved

By Galadriel Watson

Source: washington post

9/21/2022

Credit: iStock

It’s no shocker that Harry and Hermione would know that 4 – 1 = 3. But what if I told you that this Harry and Hermione aren’t characters in Harry Potter stories — they’re stingrays. And they can still do this type of math.

A study from Germany’s University of Bonn tested the mathematical abilities of several freshwater stingrays named after Harry Potter characters. They also tested a type of African fish called a cichlid (pronounced SICK-lid), and they were given names such as Jennifer and Tiffany.

River stingrays

Continue...

News Id		Source	Stamp	country
4276	Christiana Bradley And Teddy Carr Move Up Rankings In Floridas Bassmaster Southern Open	underwatertimes	2012-01-25	US
4277	Tourists plead ignorance of fishing laws	ODT	2012-01-13	NZ
4278	Fish Offspring Grow Best At Same Temperature As Parents	underwatertimes	2012-01-12	CA
4279	‘We caught a sea monster’: Florida fishermen reel in massive grouper	Global News	2021-02-18	US
4280	Lead used in fishing rod poses risk to Istanbuls Bosporus	DAILY SABAH	2021-03-15	TR
4281	Floridas New Invasive Species Is A 10-Foot Long River Monster	CBSMiami	2021-03-19	US
4282	Coroner frustrated; Canterbury dive death remains a mystery	NZ Herald	2021-03-12	NZ
4283	Scientists Use Satellite Data To Aid Fishermen In Butterfish Conundrum	underwatertimes	2012-01-06	US
4284	How To Disembowel 30 Salmon In Under A Minute	gizmodo	2011-12-29	AU
4285	New Jersey bill reduces fishing fines for anglers who do not register	pressofatlanticcity	2011-12-16	US
4286	Salmon virus in B.C. for decades, say biologists	CBC News	2011-12-15	CA
4287	Hopping Lungfish Suggest Fish First Took Steps Underwater	Underwatertimes	2011-12-12	US
4288	Fishing for monsters out of the abyss in Susquehanna River	York Daily Record	2021-03-13	US
4289	Revealed: seafood fraud happening on a vast global scale	theguardian	2021-03-15	UK
4290	Scientists rejoice over discovery of native wetland fish thought to be extinct	ABC Central Victoria	2021-03-06	AU
4291	Did Canada cover up deadly salmon virus? Report suggests yes	latimesblogs	2011-12-01	CA
4292	We are Running Out Of Cod	businessinsider	2011-11-28	UK
4293	Fishing rod doubles up as a rifle, too	ubergizmo	2011-11-23	US
4294	Warning As Edible Lionfish Found With Poisonous Ciguatoxin	Underwatertimes	2011-11-22	VI
4295	The Fish That Hunt Like Lions	smithsonianmag	2011-11-21	EG
4296	Fishing Nations Approve Overhaul Of Bluefin Tuna Tracking System	njtoday	2011-11-21	JP
4297	Fishermen to lawmakers: Don't scrap fishing system	Associated Press	2011-11-16	UK
4298	Украинские экологи спрогнозировали дефицит питьевой воды в стране	rusnext	2021-03-23	UA
4299	cientists uncover Antarctic sea creatures trapped under ice for 50 years	livescience	2021-03-20	US
4300	State Record Yellow Perch Caught While Ice Fishing	Fish'n Canada	2021-03-18	US

171 of [218 - pages.]