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

Two to hospital after University of Victoria sailing mishap

Wind gusts capsize boat of recreational club sailors

Victoria’s deaf community advocates for different sign languages to be recognized on federal accessibility act

Advocates also want Indigenous Sign Language to be recognized on the Indigenous Language Act

Transport Canada announces funds for pollutant clean up in Victoria Park, removal of abandoned boats

Contaminants at Laurel Point Park will be removed starting at the end of September

Saanich ‘inside cat’ comes home two weeks later, two pounds lighter

The only one not excited about the return of Arthur, is the… Continue reading

Volunteers gather in Metchosin for B.C.’s 1st ever search and rescue joint training

Around 200 volunteers came out for the three-day training program

United Way asks Victoria to share local love

2018 campaign aims to raise another $5M

5 things to do this weekend in and around Greater Victoria

Sooke Apple Fest returns, Saanich lights up with lantern festival and anarchists unite for downtown book fair

B.C. VIEWS: Looking under the hood of ICBC’s war on crashes

Is our accident rate really soaring, or is it inefficiency?

Coaches, players on Alberta university rugby team buckle up for the Broncos

16 people died when Humboldt Broncos bus collided with a semi-truck in rural Saskatchewan

The Vatican ‘owes God an apology,’ activist says in letter to Pope Francis

Letter came after a report on sexual abuse of more than 1,000 children in six Pennsylvania dioceses

Lions earn stunning 35-32 OT win over Ticats

Epic comeback lifts B.C. past Hamilton in CFL thriller

Czarnik nets 3 as Flames dump Canucks 5-2

Calgary picks up exhibition win over Vancouver

Most Read