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

Shuswap SPCA seeking property for new facility

Organization would like location closer to town centre

Salmon Arm Silverbacks take it to overtime against Wenatchee Wild

Silverbacks earn a point, even the gap in 4-3 OT loss

Yellow Vest movement rallied in Vernon Saturday

Protesters took to the steps of the Vernon courthouse Saturday.

Agreement to purchase property for Salmon Arm Landfill extended

CSRD has six months to get Ministry of Environment approval and city rezoning

City administrator honoured for 20 years of service

Carl Bannister’s career with Salmon Arm begins with evacuation

Yellow Vest movement rallied in Vernon Saturday

Protesters took to the steps of the Vernon courthouse Saturday.

Canada’s ambassador meets with second detainee in China

Global Affairs says John McCallum, Canada’s ambassador to China, met with Spavor Sunday

B.C. VIEWS: Andrew Wilkinson on taxes, ICBC and union changes

Opposition leader sees unpredictable year ahead in 2019

5 tips for self-care, mental wellness this holiday season

Ministry of Mental Health and Addictions urging British Columbians to prioritize self care through festive season

VIDEO: Craft growers will add to recreational market, cannabis producer says

Two B.C. men say their expertise in running small legal medical grow-ops a benefit to recreational market

Vegan chocolatiers set up shop in Penticton

Celine Nativel and David Mullner, of Maison Mulnati French Vegan Chocolates, discuss their craft

Christmas wish for Mirielle: love and carpets

Mirielle was born with misshapen back legs and after a tough life on the streets, is looking for a forever home.

World Sikh Organization demands Canada prove Sikh extremism is a threat

Sikh community says this is first time such extremism has been mentioned in federal terror-threat assessment

Risk of catching the flu increasing in B.C. this holiday season: BCCDC

Dr. Danuta Skowronski with the BC Centre for Disease Control says influenza will pick up during the holidays

Most Read