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

Evacuation alert issued for City of Kimberley

Three hours after an evacation order was issued for the St. Mary Valley, an evacuation alert was issued for the nearbycommunity of Kimberley.

Louise Baxter found after 72 hour search

Cranbrook hiker had been missing since Sunday, August 12, near Jumbo Pass.

UPDATE: Search for missing Cranbrook woman enters third day

The search for a Cranbrook woman missing in the Jumbo Pass area is entering its third day.

B.C. declares state of emergency as more than 560 wildfires rage

This is only the fourth state of emergency ever issued during a fire season

B.C. wildfires 2018: Hazy skies impacting crews in spotting new fires

18,000 people are on an evacuation alert, with 3,000 homes under an evacuation order

Wartime Wednesdays

Invermere’s Elinor Florence investigates stories from our wartime past

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

2 nurses attacked at B.C. psych hospital, union calls for in-unit security

PHSA says that in-unit guards would do more harm than good

Former B.C. optician won’t be jailed for sexually assaulting minor

Kenneth Pilkington sentenced to 24 months’ probation for offence three decades ago

B.C. program to educate parents reduces ‘shaken baby syndrome’ by 35%

Period of PURPLE Crying was launched nearly a decade ago

Red Cross now accepting donations for those impacted by B.C. wildfires

The Canadian Red Cross is asking for help now and in the weeks and months ahead.

Most Read