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

Seven years later, what’s changed since the 2011 Malahat fuel truck crash and closure?

Trans-Canada Highway reopens to traffic Friday morning after roughly 13-hour closure

Eagle Creek Bosley’s closed after SUV crashes through storefront

Structural engineer called to assess building damage

Victoria Grizzlies host fundraisers for Europe tour

The Grizzlies still have player spots available

Sooke candidate seeks two positions in civic election

Herb Haldane runs for Sooke councillor and CRD director

Woman up on assault, mischief charges in relation to downtown incidents

Traffic cone throwing Wednesday night followed by knife threat on Wharf Street

Black Press Media to launch Pipeline Full of Controversy series

Series covers Trans Mountain’s history, science, Indigenous reaction, politics and economics

Hunt continues for two suspects in Ontario restaurant explosion

The explosion left 15 people injured, but all victims have now been released from hospital

B.C. teacher charged with sexual offences involving two teens

Henry Kang, 50, of Abbotsford charged with two counts each sex assault and sexual exploitation

Military college students accused of violating Qur’an with bacon

Alleged acts by four cadets from the Royal Military College in Quebec caught on video

Burlesque performers don’t let theatre fire stop their show

Cheesecake Burlesque Revue raising money for PEERS with Saturday night performance of Hot Pink

Canucks sign top prospect Elias Pettersson to entry-level deal

Slick centre drafted No. 5 overall in 2017 NHL draft

Wildfire northwest of Kamloops jumps to 1,600 hectares overnight

Ground crews and aircraft are responding to an estimated 1,600 hectare wildfire approximately 55 kilometers northwest of Kamloops, near the Deadman Vidette Road.

Former B.C. police chief dies in ATV accident

Ex-Nelson top cop began his career in Vancouver

Highway 1 northbound traffic shifts to new lanes at McKenzie Avenue

Beginning this weekend, drivers are advised that the northbound lanes on Highway… Continue reading

Most Read