Invasive and toxic hammerhead worms make themselves at home in Ontario
Ontario is now home to an invasive and toxic worm species that can grow up to three feet long and can be dangerous to small animals and pets.
Numerous reports have been made that hammerhead worms, also known as the broadhead planarian, have been recently spotted in Newmarket, Hamilton, and the Kitchener area.
“They are here,” John Reynolds, a laboratory biologist and worm expert told CTV News Toronto on Friday. “People are surprised to see them because they’re just so unusual. People are not used to seeing them. They are a semi-tropical organism originally.”
The worms, originally from Southeast Asia, were likely brought into the province accidently through nursery stock material possibly from the U.S., Reynolds said. For years, the worms have been spotted across America and in Quebec.
“They don’t go very far on their own. They need to be transported,” Reynolds said. “They can spread quickly because if you cut them up, each piece becomes a new individual.”
The hammerhead worm, which gets its name due to the flat shape of its head, has a very dangerous neurotoxin called tetrodotoxin which is also found in pufferfish, Reynolds said. While the toxin can be lethal for small animals, it will only produce a rash for people.
“They are not seriously harmful to people,” he said. “They may make an awful rash and make your hands tingly for a bit. If you ingest one by mistake, it will just make you nauseous. It certainly won’t be fatal.”
The Kitchener-based worm expert advised people to not pick up the worms with their bare hands, and to always use gloves or a shovel to pick them up.
People have made reports and posted photos of the hammerhead worms they have found in Ontario on iNaturalist.ca, an invasive and native species reporting platform. The most recent reports are from the end of March but there are reports of the worms in the province dating back to 2019.
“These worms have been here, but in such low numbers that they were originally overlooked, but they just become more visible recently,” Reynolds said, adding that as the number of these worms increase, the more sightings and more awareness there will be.
Emily Posteraro from the Invasive Species Centre told CTV News Toronto on Friday that she encourages people to report any sightings of the worms or any invasive species to the centre or on iNaturalist.ca. In some cases, she added, it would be important to report an invasive species to the Canadian Food Inspection Agency.
“Ideally get the precise location information, an address,” she said. “And get some photos because that’s really the only way the detection can be verified.”
Ontario’s Ministry of Natural Resources and Forestry told CTV News Toronto that they are encouraging people to report sightings via the Early Detection and Distribution Mapping System, which is an online tracking system.
CTVNews.ca Top Stories
Trump confronts repeated boos during raucous Libertarian convention speech
Donald Trump was booed repeatedly while addressing Saturday night’s Libertarian Party National Convention.
This type of screen time has the worst effect on kids: experts
According to some experts, there is one type of screen time that is continuously excessive, and it's having a severe effect on our children.
Family of toddler found dead at small-town Ont. daycare no closer to answers after year of investigation
A year has passed since two-year-old Vienna Irwin was found on the property of a home-based daycare in small-town Ontario, but her family says they are no closer to answers of what happened that day.
Fire at a baby care centre kills 7 infants in India's capital, a fire officer says
A fire broke out in a baby care center in India's capital Saturday night, killing seven infants, a fire service officer said.
UN migration agency estimates more than 670 killed in Papua New Guinea landslide
The International Organization for Migration on Sunday increased its estimate of the death toll from a massive landslide in Papua New Guinea to more than 670 as emergency responders and traumatized relatives gave up hope that any survivors will now be found.
More seniors are using homeless shelters. Here's why, according to experts
One of the country’s homeless shelters has seen an uptick in the number of people through its doors, including more older adults over 50.
Grayson Murray, two-time PGA Tour winner, dead at 30
Two-time PGA Tour winner Grayson Murray died Saturday morning at age 30, one day after he withdrew from the Charles Schwab Cup Challenge at Colonial.
No sign Canada has a plan to reach NATO defence spending target: U.S. NATO ambassador
The U.S. ambassador to NATO says she has seen no indication that Canada has a plan to reach the NATO spending target of two per cent of GDP on defence.
Man or machine? Toronto company finds a way to determine how real audio clips are
The Toronto-based research arm of life sciences technology firm Klick Health has found a way to analyze voices in a manner that’s so granular, it can tell whether it's a person or an artificial intelligence-powered machine.