Questions from the public
A selection of answers to your questions.
2019 / 03 / 15
A diver caught in a whale’s mouth?
While feeding at the surface, a Bryde’s whale accidentally snatched up a diver, who found himself, from the waist up, inside the whale’s mouth! At the time of the events, the diver was working...
2019 / 02 / 06
Do whales have baby teeth?
Humans have two generations of teeth: deciduous teeth (from the Latin “to fall”) – also called “baby teeth” – and permanent teeth. Known as diphyodontia, this phenomenon is...
2019 / 02 / 06
How do they determine the age of whales?
Estimating the age of marine mammals is more complex than one might think. Few reliable techniques exist to determine the age of whales, at least in the case of living specimens. Yet it is an essentia...
2019 / 01 / 23
Which whale species has the largest testicles?
North Atlantic right whales have the largest testicles in the animal kingdom. They can exceed 900 kg, which corresponds to about 2% of the animal’s total weight. Harbour porpoises have nothing to be...
2019 / 01 / 17
How do calves manage to follow their mothers?
After birth, a calf remains with its mother at a minimum for the duration of nursing, which varies from a few months to a few years, depending on the species. Since calves only drink breast milk early...
2018 / 12 / 17
Could We Use Facial Recognition for Whales?
Have you ever been asked if you would like to tag someone in your photo on Facebook? It is the ingenious artificial intelligence that detects faces on your photos. Could it be used to identify whales?...
2018 / 11 / 26
Why do cetaceans die?
Just like us, cetaceans (whales, porpoises, and dolphins) have a range of reasons that can lead to mortality. Because of this, when a dead whale washes ashore, finding the cause of death can often be ...
2018 / 10 / 24
Are there krill in the wintertime?
Yes, there are krill in the St. Lawrence in the wintertime. According to a recent study by Dr. Yvan Simard and Nathalie Roy from Fisheries and Oceans Canada, the abundance of krill, in fact, was the h...
2018 / 10 / 16
How do whales go on long dives?
Whales are marine mammals that dive for various reasons, such as: feeding and mating. Their prey are found at varying depths under the water and depending on where in the water column that is, whales ...
2018 / 10 / 15
What Do Whales Do at Night?
A curtain closes, night takes over the sky and during its quiet advance the frantic pace of the cities tapers off. But what happens in the St. Lawrence when darkness arrives? What do whales do during ...