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

No injuries after collapsed floor traps worker at former mill in Campbell River – fire chief

Company says it’s investigating after incident at decommissioned Catalyst facility

Jolly Giant convenience store robbed in Campbell River

Campbell River RCMP asking for public’s help in identifying suspect

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

Bowl for Breath on Feb. 2 and 3 supports work on cystic fibrosis

School registration forms for Campbell River event are due Jan. 18

Campbell River Storm blow away Glacier Kings on the road

Team remains well in the lead league-wide and a whopping 23 points up on Nanaimo in the division

UPDATE: B.C. legislature managers accused of excessive travel, personal expense claims

Clerk Craig James, security chief Gary Lenz call allegations ‘completely false’

B.C. man fined $10,000 after leaving moose to suffer before death

Surrey man was convicted last week on three Wildlife Act charges

‘Blue Monday’ isn’t real, but depression can be

CMHA encourages people to prioritize their mental health

Parole granted for drunk driver who killed B.C. RCMP officer

Kenneth Jacob Fenton will be able to attend alcohol abuse treatment, nearly three years after crash that killed Const. Sarah Beckett

Anti-pipeline group wants NEB to consider impact of emissions, climate change

Stand.earth filed NEB motion asking to apply same standard to the project as it did with Energy East pipeline

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

B.C.’s largest public-sector union wants inquiry into money laundering, drugs

Union officials say Premier John Horgan and Attorney General David Eby have not ruled out the possibility of a public inquiry

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

Suspect allegedly armed with handgun robs Island gas station

Incident occurred Sunday night in Nanaimo

Most Read