animal research

WTF Fun Fact 13104 – Pandemic Influences on Animals

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While the pandemic was a catastrophe for humans, many wild animal populations flourished without us around. Of course, this wasn’t always ideal for their ecosystems, but scientists are still trying to understand that. Nearly all researchers who were in the middle of field research on animal populations (or even those displayed in zoos and aquariums) are in the process of studying the precise nature of pandemic influences on animals.

The “anthropause”

Scientists have suggested that the period at the height of the pandemic be called the “anthropause.” That’s because at the height of the pandemic, humans weren’t around in many places to disturb animal populations.

Researchers are interested in studying this moment in time to see how wildlife adapted to our absence. The COVID pandemic provided a unique opportunity to see how the absence of things like noise, pollution from traffic, and tourism affect animal populations.

What were some pandemic influences on animals?

We don’t yet know the full effects of the pandemic and its “anthropause” on animals, since the world is only recently revving up again. But researchers can look at data from tracking devices, cameras, and sensors to see how things were different in 2020 and 2021.

Accoring to Science Magazing (cited below): “The International Bio-Logging Society, for example, is coordinating a large effort to assess how reduced vehicle, ship, and aircraft traffic is affecting animal behavior. More than 300 researchers have indicated they have relevant animal tracking data from 180 species of birds, mammals, reptiles, fish, and sharks across almost 300 study populations from all continents and oceans.”

It’s data that one researcher called “a gold mine.”

But other scientists that had to halt their research during the pandemic need to completely rethink their approaches. The pandemic pause needs to be factored into any historical data that included the pandemic years.

What did wildlife do during the pandemic?

As for the data collected during the pandemic, scientists are seeing some interesting things. More animals wandered around in the daytime. Some are now less active than they were before the pandemic. Cities saw some rare animals wander into their limits.

It all leaves more questions than answers.

But some new studies have popped up in response to the lack of humans around wildlife. For example, animal experts are looking at the effects of a lack of tourism on the diet and health of animals that were once fed by human visitors.

In the end, it may help us figure out how to regulate tourism in order to best help vulnerable species. — WTF fun facts

Source: “The pandemic stilled human activity. What did this ‘anthropause’ mean for wildlife?” — Science

WTF Fun Fact 12673 – What’s In A (Cat’s) Name?

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In unsurprising news, there’s more evidence that cats don’t care about something.

Japanese researchers did a small study (which is really all you can do when cats get involved) and found that cats seem to recognize the names of their feline housemates. However, they still don’t give any indication of recognizing their own. Whether it’s because they just don’t care is something we’ve yet to figure out.

Why should we even care what words cats recognize? Well, IFL Science put it in context the best: “Birds with vocal cords that can imitate our own can learn a variety of human words, and it’s argued some know the meaning, rather than merely mimicking. Apes taught sign language also understand the meaning of words, and more recently dogs have been found to be able to learn up to 12 toys’ names in a week – but what about cats?”

In other words, we do all of this behavioral research on animals and find these fascinating signs that, in some sense, they can organize the world in ways similar to our own. So why not take a look at these abilities in some of the most common pets?

The research was conducted by Saho Takagi, a PhD student at Kyoto University who published the results in the journal Scientific Reports. The research team tried an experiment with domestic cats living in a 3+ cat home as well as residents of Japan’s famous cat cafes.

The study does rely on one important assumption (but if you know anything about science, you know that this is often the case since that’s where we start in order to help prove things). The assumption is that like other animals, cats stare longer than normal when they are surprised by something. In this case, hearing a name they recognize.

So the team spoke to the cats and said the names of their fellow resident cats to see if they would get a reaction. And they did, at least when the cats didn’t just run off in the middle of the experiment (and one did).

But what’s interesting is that this only happened in households, not in cat cafes. And in cat cafes there tends to be a lot of turnover from adoptions (and a lot more names to remember). So it may be that the cats in those cafes never hear a name enough time to have it ring a bell.

Apparently, the cats only reacted to the spoken names. Seeing their feline roomies’ photos on a laptop didn’t have any effect. Also, hearing their own names had no effect.

There were only 19 cats involved in the study, so it’s right to be skeptical. But that’s where we often start in science. The study still showed there was statistical significance to the results, and that’s typically a sign that further research can continue until there’s enough evidence to constitute some kind of “proof.”

In the meantime, just take it as a sign that your cat ignoring its name is not necessarily them blowing you off. They may just not be able to recognize that a name belongs to them. Or they just don’t care.

IFL Science explains this is not Takagi’s first cat study: “Last year she was first author on a paper exploring the feline capacity to map the spatial location of their person or a familiar cat. Takagi and co-authors reported the cats showed surprise when speakers broadcast the voice of the person who feeds them, despite that person’s absence. The same reaction did not apply to recordings of familiar cats’ vocalizations or unrelated sounds. Previously she studied cats’ understanding of the law of physics.” –  WTF fun fact

Source: “Cats Can Learn Each Other’s Names, Not Just Their Own, Study Claims” — IFL Science

WTF Fun Fact 12651 – The Military Researchers Who Turned a Cat Into a Phone

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Have you ever wanted to turn a cat into a telephone? We haven’t either. But in 1929, two Princeton University researchers gave it a go anyway. Apparently, they weren’t cat lovers.

Professor Ernest Glen Wever and his research assistant Charles William Bray performed the experiment that involved a live but unconscious (thankfully!) cat in order to see how the auditory nerve perceives sound.

That’s a fancy way of saying they sedated a cat, opened its skull, accessed its auditory nerve, and attached a telephone wire to it. The other end of the wire was connected to a telephone receiver.

While many of us may turn up our noses at the thought of animal research, it has saved and improved many human lives. Bray and Wever weren’t even interested in making a cat into a telephone for any practical purpose (not that we could even think of one anyway). Instead, they were interested in the research methods used to run the tests, which paved the way for more sophisticated research on human hearing and made contributions to devices called cochlear implants that convert sound vibrations into electrical signals in the brain for deaf people.

Despite not caring much about creating a cat phone, the experiment did work, and Bray was able to speak into the cat’s ears while Wever listened through the receiver 50 feet away in a soundproof room.

Princeton’s Mudd Manuscript Library wrote a blog describing it in more detail. They say:

“The common notion during this time was that the frequency of the response of a sensory nerve is correlated to the intensity of the stimulus. In the case of the auditory nerve, as a sound becomes louder, the frequency or pitch of the sound received by the ear should be higher. When Bray made a sound with a certain frequency, Wever heard the sound from the receiver at the same frequency. As Bray increased the pitch of the sound, the frequency of the sound Wever heard also increased. This experiment proved that the frequency of the response in the auditory nerve is correlated to the frequency of the sound.”

Wever and Bray received the first Howard Crosby Warren Medal of Society by the Society of Experimental Psychologists in 1936 for the experiment.

Later, both men entered military research. Bray became the Associate Research Director of the U.S. Air Force Human Resources Research and then served on the civilian psychological research team for the National Defense Research Council and the Navy. Wever became a consultant to the National Research Council on anti-submarine warfare.

And cats worldwide likely rejoiced that they found other things to do. –WTF fun facts

Source: “The Cat Telephone” — Mudd Manuscript Library Blog