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

UPDATED: East Zeballos placed under evacuation alert as “out of control” wildfire approaches homes

BC Wildfire Service says rolling debris on steep terrain poses danger to firefighters

Independent Investivations Office looking into Sayward crash

An incident in which a vehicle under RCMP scrutiny crashed near Sayward… Continue reading

Safety under scrutiny at Elk Falls following latest death

Campbell River Search and Rescue urges caution, but argues against new fences

Road-building delayed at Snowden Demonstration Forest

Strathcona Regional District to ask province to back planning process

Wood debris drop-off for Campbell River area this Saturday

Program helps people reduce wildfire risks in their yards

Trump suggests Canada has been sidelined from latest NAFTA negotiations

Canadian officials have insisted they’re unfazed by being left out of the discussions

B.C. judge who cried during a victim statement to rule on recusing herself

The judge will decide if she’ll disqualify herself from sentencing a man for sexual assault

Photographer files complaint with police after alleged assault on the job

Toronto photographer says he was attacked while covering a protest

Happy birthday Boler: An anniversary gathering of the cutest campers in Winnipeg

Hundreds of the unique trailers in Winnipeg to celebrate the 50th anniversary of the Manitoba invention

Details revealed about Fredericton shooting

Judge lifts publication ban on court documents related to the Fredericton shooting

Minister optimistic after 2 days of Columbia River Treaty negotiations

Canadian and U.S. officials met in Nelson Wednesday and Thursday to discuss future of the treaty

Man dies in B.C. police cell while awaiting court hearing

An independent investigation is underway after a man died while in Penticton police custody Aug. 16

RCMP appeal for tips, dashcam footage in German tourist shooting west of Calgary

The Durango crashed into the ditch after the shooting near the Goodstoney Rodeo Centre

Most Read