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

Rally race this weekend

Rocky Mountain Rally returns May 25th to 27th.

Hop to the Panorama hare scramble

Dirt bike race returns June 1-3

Find your fun at Canal Days

Annual party in the Flats May 30th to June 3rd

Rowdy teens cause ruckus over long weekend

Weekly RCMP report looks at some of the more interesting callouts for Valley RCMP

Shelter in a storm

ShelterBox demo for Rotary donation

Trans Mountain pipeline: How we got here

A look at the Kinder Morgan expansion, decades in the making

Giant beer tanks arrive in new B.C. home city

Molson Coors tanks finish river journey and move to overland trip in Chilliwack

VIDEO: Pipeline supporters rally across B.C.

Five simultaneous events organized by month-old Suits and Boots lobby group

VIDEO: B.C. woman praises burn fund after boat explosion in 1978

White Rock woman was 16 years old when she was left with second- and third-degree burns

B.C.’s Ryan Craig, Vegas Golden Knights chase history

Local product behind bench for expansion team’s incredible championship run

CP rail workers give strike notice

Employees could walk out as early as Tuesday at 7 p.m. PT

Suspected scammer attempts to use Black Press newspaper to dupe woman

Canadian Anti-Fraud Centre offers tips after Langley resident received suspicious call

Vote points to abortion being legalized in Ireland

Voters asked whether to keep or repeal Eighth Amendment to Roman Catholic Ireland’s Constitution

Most Read