
How zebras, giraffes and other wildlife help stop rhino poachers
In Kruger National Park, South Africa, rhinos, zebras, giraffes, impalas and wildebeest have been fitted with GPS tracking transmitters. Their movements in response to humans trigger an alarm, so rangers can move quickly to stop poachers. Learn more in The Secret Knowledge of Animals, now streaming on CBC Gem and The Nature of Things YouTube channel.

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Winnipeg Free Press
3 days ago
- Winnipeg Free Press
‘Nature of Things' looks at how parenthood changes men's brains and bodies with ‘Dad Bods'
TORONTO – A new episode of CBC's 'The Nature of Things,' timed to Father's Day, explores some of the ways men's brains and bodies adapt to parenthood. The episode titled 'Dad Bods' takes viewers across Canada and around the world to look at social and scientific elements of fatherhood. The Canadian Press spoke with director Christine McLean about how the doc, available now on CBC Gem, came together. CP: Tell me about the tone of the documentary. McLean: I like to think that it's not just humorous, but it's warm-hearted… I think the most important point that came out of all this science, most of it quite recent, only in the last 20 years or so, is that we as humans, we have these incredible bodies that are so adaptable. And especially our brains. What the science is showing us is that given the opportunity, we all have the potential, whether we're male or female, to be great nurturing parents. Dads become more empathetic than they might have been before they had children, but they also become experts in their own child. The part of the brain that's stimulated is the part that allows us to read social cues. And they really become very intelligent in terms of figuring out why a baby is in distress. CP: Did anything you learned while making the documentary surprise you? McLean: I did not know that a man's testosterone typically goes down after he has a child. It made a certain amount of sense because I think many of us notice that when a person becomes a parent, they become a softer, gentler version of themselves… I had no idea that that was linked to biological changes inside that person. That was the first surprise. All men are impacted by hands-on care of children: grandfathers, uncles, adoptive fathers. If they're holding that child, they have those hormonal changes happening. That was all new to me. I think new to most people was the recent science about the benefits of what they call skin-to-skin care, which is common in Canadian hospitals. I remember noticing a few years ago friends would send me photographs of babies being held by their dads, and the dads would have their shirts off. And I'm thinking, what is happening in the delivery room these days? It puzzled me. Is this a weird new selfie that people are taking? Little did I know that there's all kinds of physical benefits to that. The father's heart rate goes down, his blood pressure goes down, the baby is comforted. But also the baby often will take in the good gut bacteria that can be on the dad's skin and it helps their digestive system. And who knew that? That was only discovered a couple of years ago. And we now know that for babies who are born via caesarean section, they don't get the gut bacteria from the mom that they get with a conventional birth. And yet, if dads practise skin-to-skin care, the latest science shows that their contribution to that baby's gut health is as robust as the mom's would have been had she delivered vaginally. It's extraordinary. CP: The episode made me think about masculinity, and the conversations we're having around what masculinity means. McLean: It wasn't one of my goals to delve into that, but watching it, you can't help but think about these things. I would say that anybody watching this documentary is not going to be left with the feeling that a good father isn't masculine. I think they're going to have the exact opposite feeling. The book that inspired it ('Father Time: A Natural History of Men and Babies' by American primatologist Sarah Blaffer Hrdy) delves into that a little bit more. There is this sense that if we are to give men permission or at least encourage them to be close to their children, that the changes that happen in their body result in a different kind of masculinity. I'm not going to say it's less masculine… I think that there's kind of a new version of a hero that's evolving when it comes to fathering children. And I think today's heroes are the dads who get up in the night, the dads that change the diapers, the dads that worry about whether their children are happy. And I don't think that makes them less a man. I think it makes them a greater human being. And I think that discovering there was so much going on in the male body in a sense takes gender out of the equation. CP: How would you respond to someone who doesn't like the idea of their testosterone level going down? McLean: The fact that testosterone goes down, when that was discovered about 20 years ago, it attracted a lot of attention and led to this burgeoning field of science. And I can only assume that there was some concern about that on the part of men, because it's testosterone that allows men and women to build body mass. It leads to competitiveness, it leads to assertiveness. None of those things are bad. The thought of losing some of that, I can understand where somebody — particularly a young man — might not like thinking about that. But anybody who watches this documentary will see that the rewards for being a hands-on dad are so great. Losing a little testosterone in the process is no big deal when you see the rewards, the bonds that develop with your child. Weekly A weekly look at what's happening in Winnipeg's arts and entertainment scene. We couldn't fit everything into the documentary, but what the data shows is, in addition to fathers living longer and having greater health, they have stronger marriages. They have better relationships with their kids. We were focused on the dads, but if you were to look at the children, there are so many profound benefits to a child to having a hands-on dad, in terms of how well they do in school, how well their mental health is. And I think that a good dad makes for a good family, and good families make for a great community, and there's just these ripples of positive impact from dads being as involved as they are today. This interview was edited for length and clarity. This report by The Canadian Press was first published June 5, 2025.

Montreal Gazette
4 days ago
- Montreal Gazette
Brownstein: Montreal producer takes deep dive in documentary Implosion: The Titanic Sub Disaster
By The documentary begins intriguingly enough: 'Where do you want to go in the ocean? What is the most known site in the ocean? It's clearly the Titanic.' The speaker is well-heeled, maverick American inventor Stockton Rush, whose mission it was to take paying passengers 3,800 metres into the Atlantic Ocean in his mini-sub to scope the ruins of the Titanic luxury liner that sank on its maiden voyage in April 1912 after striking an iceberg 600 kilometres off the coast of Newfoundland. More than 1,500 passengers died in that disaster. Five died, including Rush, when his submersible the Titan imploded on its way down to the Titanic wreck on June 18, 2023. The documentary Implosion: The Titanic Sub Disaster takes a deep and disturbing plunge into the apparent arrogance of Titan mastermind Rush, the co-founder and CEO of the OceanGate undersea exploration company. The doc, co-produced by Montreal GalaFilm boss Arnie Gelbart and directed and co-scripted by acclaimed British director Pamela Gordon, begins streaming Friday on CBC Gem. It will also be broadcast on CBC Television June 20. The production team has done a thorough job in bringing this tragedy into fuller focus, aided and abetted by insightful interviews, rare footage of the Titan's final voyage and other failed dives plus access to the U.S. Coast Guard's investigation. Experts interviewed had misgivings about the Titan's structure, particularly its carbon-fibre hull, even if Rush had pulled off some dives prior to its final descent. There were other ominous warning signs, like seeping water damage and cracking engine sounds. Mutters one skeptic: 'Everyone stepping on board the Titan was risking their life.' The feeling was that Rush was 'hell-bent' on taking the Titan to dangerous new lows under the ocean, someone seeking to 'democratize deep-sea exploration.' Rush was an engineer who initially dreamed of becoming an astronaut. But when it became apparent he was never going to make it to 'Jupiter or Mars,' he turned his sights in the opposite direction. He concluded that would require a 'special sub.' Rush had the money, vision and drive to do so. He was a patrician whose roots went way back, with two of his ancestors having signed the U.S. Declaration of Independence. History, as is often the case, repeats itself here. How's this for cruel irony? Rush's wife's great-great-grandparents, owners of the fabled Macy's department-store chain, perished on the Titanic. They were rumoured to have been the richest passengers aboard. Christine Dawood is understandably livid. Among the five who died aboard the imploded Titan were her billionaire British-Pakistani husband, Shahzada, 48, and son Suleman, 19. She blames 'ego and arrogance' for their deaths. Gelbart has long been consumed by the Titanic and Titan. He brings to the documentary a wealth of factoids about both as well as Rush's participation. 'Rush had done some 88 dives prior to his last, but not all successful ones,' Gelbart says in a phone interview. 'It went down successfully only six times.' Gelbart had been involved since 2017 when Rush had come up with a working model of the Titan, which he had initially tested in the Bahamas. Then ensued a lot of correspondence with Rush, who was to move to his company's home in Everett, Wash. before heading to his last base in St. John's. 'He was looking for publicity, and I first wanted to make an Imax film, The Return to Titanic. What he was building for us was a remote camera that would go inside the hold of the Titanic, full of cars and furniture and other stuff that no one had seen since 1912.' Gelbart's project was initially to be a four-part series, retelling the Titanic story but using Rush's submersible to examine what was left of it, including its interior. 'We were looking for a Hollywood celebrity for the project,' Gelbart says. 'I would have liked to go down there myself, but because it was something like $250,000 a seat, it was not feasible. Instead, we included that price in our budget for a celebrity, someone to tell the Titanic story by being next to it.' Amid all the experimenting, failed testing and rebuilding of the original Titan, Gelbart stayed in touch with Rush. 'He was a great salesman and really believed in the Titan. As an engineer, he could talk the talk. We trusted him. We didn't think he was creating something that was fatally flawed. He explained the technology, but what do I know about carbon fibre? 'He moved his operation to St. John's for a number of reasons, one of which was so he wouldn't need to certify it in Canada. But on the downside was the weather there. And with water freezing, then thawing on the Titan lining outside, this could have created damage. In the final report of the U.S. Coast Guard, we heard this could have been one of the mitigating factors in the disaster.' That official report has yet to be released. Why? 'When (U.S. president Donald) Trump took over this year, he fired the head of the U.S. Coast Guard. So they're not allowed to release it until they get a new head.' Gelbart was shocked like most everyone else upon learning of the implosion. 'But 24 hours later, we had the commission from the BBC, Discovery U.S.A. and the CBC to make this documentary. It was such a whirlwind turnaround for a story that much of the world had been watching and waiting for news about what happened to the Titan and its occupants, until the fate was learned.' Gelbart's GalaFilm has more than 120 film and TV credits and has won dozens of awards, including multiple Gémeaux/Geminis and one Prime Time Emmy Award for the Cirque du Soleil series Fire Within. 'But this was the first time in my life I was involved with anything as well-known as this one.'


CTV News
5 days ago
- CTV News
Here's how you can follow along as peregrine falcon chicks grow up in Edmonton
A peregrine falcon can be seen feeding its four chicks at the Bell Tower nesting site. (Photo: YouTube/Alberta Conservation Association) The first public peregrine falcon chicks are hatching in Alberta. A brood of four chicks can be seen at the Bell Tower on the Alberta Conservation Association's (ACA) live cameras. The feeds are set up at five nest sites in the Edmonton area, allowing viewers to keep 24-hour tabs on families during nesting season. Pairs started laying eggs in April, and the first on-camera chicks hatched at the end of May. Viewers will be able to watch them grow until the fall when the young will fledge. Bell Tower peregrine falcon chicks Four peregrine falcon chicks can be seen at a nesting site at Bell Tower. (Photo: YouTube/Alberta Conservation Association) Peregrine falcons – the fastest animals on earth with diving speeds of more than 320 km/hour – were endangered in Alberta until 1999, a result of steep population declines caused by pesticide use in the 1950s and 60s. The province reports just three pairs, and only one reproductive pair, were found in 1970. To protect the species, those birds were taken into captivity to breed. peregrine falcon Shell Scotford A peregrine falcon can be seen with four eggs at the Shell Scotford nesting site. (Photo: YouTube/Alberta Conservation Association) Thanks to recovery efforts, peregrine falcons were reclassified as a threatened species in Alberta in 2000. Only the Bell Tower nest had chicks as of Wednesday, but both the Genesee and Shell Scotford nests had eggs expected to hatch any day. The peregrine pair at the University of Alberta nest had no eggs because the female is a yearling and not ready to lay. However, the ACA said there is still lots to see as the couple hunt, eat and she undergoes her moult into adult plumage. U of A peregrine falcons A male (left) and female peregrine falcon can be seen eating at the University of Alberta nesting site. (Photo: YouTube/Alberta Conservation Association) The ACA said not to be alarmed should a few chicks disappear during the season. Due to high fledgling mortality in urban centres, two or three chicks are removed for conservation purposes. Those chicks will be raised by captive adult falcons (who have a hard time telling the difference between their own young and other chicks) and will be released into the Pembina and North Saskatchewan River valleys. 'The results are difficult to ignore,' the ACA says on its website. 'The peregrine population in Alberta has gone from one productive pair in 1970 to an estimated 80 pairs today. In southern Canada, the species has gone from three productive pairs in 1975 to several hundred.'