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

Husband of slain RCMP officer ‘disgusted and disheartened’ by parole board

Killer of Const. Sarah Beckett allowed limited day parole for alcohol treatment

Driver convicted in death of Const. Sarah Beckett granted partial parole

Kenneth Jacob Fenton will be able to attend an alcohol abuse treatment, nearly three years after fatal crash in Langford

House fire on Esquimalt First Nation sends one to hospital

The blaze began at a home in a residential neighbourhood; one person has been treated for smoke inhalation

City of Victoria earmarks $90,000 for mayoral assistant

The new Head of Strategy and Operations would help with municipal duties

Experts discuss sustainability and tourism in Victoria

IMPACT Sustainability Travel and Tourism Conference runs Jan. 21-23

WATCH: Celebration of Life hosted for 29 Victoria trees set to be removed

Community Trees Matter Network hosting “goodbye and thank you” for trees on Fort Street

Trial starts for man accused of killing Winnipeg bus driver

The Winnipeg bus driver was stabbed multiple times back in 2017

Giuliani clarifies comments about Trump Tower Moscow project

Trump’s lawyer Rudy Giuliani clarifies comments he made

Teen in confrontation with Native American: I didn’t provoke

Nick Sandmann of Covington Catholic High School said he was trying to defuse the situation

Speaker brings report on allegations to B.C. legislature committee

Report describes Darryl Plecas’ suspicions about senior staff

Suspect allegedly armed with handgun robs Island gas station

Incident occurred Sunday night in Nanaimo

B.C. man charged in 2014 snake venom death of toddler

Henry Thomas was taking care of the North Vancouver girl the day before she died

MARS seeing influx of sick, injured eagles from north part of Vancouver Island

Factors for increase in eagle cases can be anything from lead poisoning to vehicle strikes

Doug Ford says the Liberals’ carbon tax will plunge Canada into recession

The Ontario premier said there are already warning signs of difficult economic times ahead

Most Read