In this screengrab from a YouTube video, a turtle approaches the larger of two model turtles on the right. (Gregory Bulte via The Canadian Press)

‘Sex dolls’ help biologist study turtle mating habits

3D-printed ‘sex dolls’ help Carleton biologist find out what turtles find attractive in a female

Using 3D-printed “sex dolls” a Carleton University researcher has answered a question biologists had been asking for years — what do northern map turtles find attractive in a female.

Biologist Gregory Bulte says he’s been studying the mating habits of the northern map turtle for about 15 years, but the turtles are skittish and hard to observe because they mate on the bottom of lakes.

RELATED: Sex robots could help your marriage

He says the females can grow to twice the length of males and he wondered whether males might be attracted to larger females.

Bulte says he and his colleagues printed two 3D printed “sex dolls” of female turtles, identical in every aspect except size, and placed them a metre apart on the lake bed, with cameras rigged up to record how wild males reacted.

As predicted, Bulte says the males attempted to mate with the large model more often than the smaller one.

He says that by selecting larger females, males would increase the fitness of their offspring because larger females produce larger hatchlings and he plans to continue his research using the models.

“For these turtles it would be very difficult to have somebody just sitting there taking notes underwater without scaring them away,” he said Wednesday.

RELATED: The coming disruption: How robots might upend different professions

Bulte said the models could also allow scientists to look at other traits involved in the turtles’ mating behaviour.

“We could look at colour … the markings, we could do that across seasons to see if it changes,” he said.

The northern map turtle is listed as a species at risk in Canada and is found in lakes and rivers in the corridor between Montreal and Windsor, Ont., Bulte said.

Bulte also said he’s going to need some help going through the data he has collected.

“Now I’m just hoping to find a really good student that is willing to watch a lot of turtle videos,” he said.

The Canadian Press

Just Posted

Ducks Unlimited 34th Annual Dinner & Auction

The fundraiser takes place on Saturday, October 13th, 2018 at the Creston & District Community Complex.

More burning prohibitions rescinded in southeast B.C.

Category 2 and 3 fires will be permitted in Southeast Fire Centre as of 1p.m. on Wednesday.

Creston: 12 candidates for council, three for mayor

Council candidates include four incumbents

Creston: 2018 candidates for the Regional District of Central Kootenay

RDCK Area A Director Garry Jackman has been elected by acclamation. 2… Continue reading

Service interruption and the issue of Boil Water Notice planned for Balfour

The RDCK will be issuing a Boil Water Notice starting on Wednesday, September 19th for all water users in Balfour.

B.C. RCMP turn to Const. Scarecrow to shock speeders into slowing down

New addition will watch over drivers from a Coquitlam median for first-of-its-kind pilot in Canada

Canadian air force short 275 pilots

Attrition outpaces recruitment and training claims Air Force

Teacher suspended after physically shushing, saying ‘shut up’ to student

Grade 5 student reported feeling ‘confused and a little scared’

A B.C. society helps to reforest Crown land after wildfires

Forest Enhancement Society of BC focuses on wildfire mitigation and the reforestation

B.C. marijuana workers may face U.S. border scrutiny

Cannabis still illegal federally south of the border

New political party holds an informational session in Vernon

Maxime Bernier’s The People’s Party of Canada draws about 2o interested patrons to Vernon pub.

B.C. MLAs reminded of rural school struggles

Finance committee hears of falling enrolment, staff shortages

B.C. VIEWS: ’Not photo radar’ coming soon to high-crash areas

ICBC deficit now largely due to reckless and distracted driving

Researchers tag great white shark in Atlantic Canada

Information will be used to learn more about where white sharks move in Canadian waters

Most Read