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

Former Vernon man guilty of Japanese exchange student’s murder

Natsumi Kogawa was found at empty heritage mansion shortly after she was reported missing in 2016

West Kelowna high school teacher faces sexual assault charges

A Mount Boucherie teacher has been charged with child luring, sexual exploitation and sexual assault

Contenders to return for Okanagan tour

Valdy, Gary Fjellgaard and Blu and Kelly Hopkins will perform at six venues

Lake Country candidates reflect on previous council

This week’s question is what could have been done differently?

Arkells to perform in Kelowna as part of latest album tour

The rock and rollers are performing Feb. 5 at Prospera Place

Cough cough: Kelowna MLA gets flu shot to prep for the cold season

Steve Thomson got his flu shot from Lakeside Medicine Centre Friday

Watch it again: Kelowna mayoral candidates square off

Missing the LIVE Kelowna mayoral debate watch now

How to get government cheques if Canada Post staff go on strike

The Canadian Union of Postal Workers said members could go on rotating strikes as early as Monday

Anti-SOGI school trustee files defamation lawsuit against BCTF president

Barry Neufeld says Glen Hansman’s words caused him “indignity,” “personal harassment,” and “anxiety”

Ocean “Blob” returns to North Coast of B.C.

A 2,000 kilometre patch of warm ocean water could signal a warm winter in Prince Rupert

Pot sales down by nearly 70% on Day 2 of legalization in B.C.

Several products on BC Cannabis Store are still sold out

B.C. man accused of killing Belgian tourist along Highway 1 appears in court

Sean McKenzie, 27, made second court appearance since his arrest in connection with the murder of Amelie Sakkalis

Colourfully named cannabis products appeal to youth, Tory health critic says

Conservative health critic Marilyn Gladu says the Liberal government needs to do more to ensure cannabis products available online are not enticing to young people

Trial set for man charged with decades-old murder of B.C. girl

Garry Handlen accused of killing Merritt girl; also charged with Abbotsford murder

Most Read