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

Keep pot shops away from kids, say Rosslanders

Citizen’s survey gives council guidelines for bylaws

Trail taxpayers face $16,000 tab for vandalized parking meters

In a recent rash of vandalism in downtown Trail, 30+ parking meters were broken into & coins stolen

UPDATED: Horgan says B.C. defending its interests in Trans Mountain pipeline

Canadian finance minister’s update comes the same day Kinder Morgan shareholders plan to meet

Trail council pitches relief to Rossland ballplayers

Rossland Mayor Kathy Moore said it’s time to look at the future of recreation funding

Kootenay unemployment rate down in April

Jobless figure stood at 5.4% last month

VIDEO: After the floods, comes the cleanup as Grand Forks rebuilds

Business owners in downtown wonder how long it will take for things to go back to normal

36 fires started May long weekend, most due to lightning: BC Wildfire

As warmer weather nears, chief fire officer Kevin Skrepnek says too soon to forecast summer

Ariana Grande sends message of hope on anniversary of Manchester bombing

Prince William joins survivors and emergency workers for remembrance service

B.C. flood risk switches from snowmelt to rainfall: River Forecast Centre

Kootenays and Fraser River remain serious concerns

Pipeline more important than premiers meeting: Notley

“Canada has to work for all Canadians, that’s why we’re fighting for the pipeline”

Canadian government spending tens of millions on Facebook ads

From January 2016 to March 2018, feds spent more than $24.4 million on Facebook and Instagram ads

Canada, U.S. to begin Columbia River Treaty negotiations on May 29

B.C. MLA Katrine Conroy will represent the province in the talks

VIDEO: How to use naloxone to stop a fentanyl overdose

ANKORS’ Chloe Sage shows what to do when someone is overdosing

UPDATED: BC Ferries freezes plans to nix fuel rebates pending government funds

Claire Trevena says she is ‘extremely disappointed’ by a plan by BC Ferries to remove fuel rebates

Most Read