Are humans influencing cancer in wild animals?
New York, May 22: Besides indulging in cancer causing behaviour like smoking, poor diet and low hygiene, human beings are also changing the environment in such a way that it can lead to the deadly disease in many species of wild animals, researchers have warned.
"Cancer has been found in all species where scientists have looked for it and human activities are known to strongly influence cancer rate in humans," said Mathieu Giraudeau, postdoctoral student at the Arizona State University in the US.
"So, this human impact on wild environments might strongly influence the prevalence of cancer in wild populations with additional consequences on ecosystem functioning," he added.
The study, published in the journal Nature Ecology & Evolution, pointed out many pathways including chemical and physical pollution in our oceans and waterways, accidental release of radiation into the atmosphere from nuclear plants, and the accumulation of microplastics in both land- and water-based environments, that show where human activities are already taking a toll on animals.
In addition, exposure to pesticides and herbicides on farmlands, artificial light pollution, loss of genetic diversity and animals eating human food are also known to cause health problems.
"We know that some viruses can cause cancer in humans by changing the environment that they live in -- in their case, human cells -- to make it more suitable for themselves," explained Tuul Sepp, postdoctoral student at the varsity.
"Basically, we are doing the same thing. We are changing the environment to be more suitable for ourselves, while these changes are having a negative impact on many species on many different levels, including the probability of developing cancer," Sepp added.
Even something such as artificial light and light pollution, as well as food meant for humans, are negatively affecting wild animals.
Ruling that "cancer in wild populations is a completely ignored topic", the researchers have urgently called for studies on cancer and its causes in wild animal populations.
"We want to highlight the fact that our species can strongly influence the prevalence of cancer in many other species of our planet," Giraudeau said.
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KSRTC introduces gender ticketing in buses across Kerala
Thiruvananthapuram (PTI): The KSRCTC on Saturday began implementing gender ticketing in buses operating across the state.
According to a Kerala State Road Transport Corporation (KSRTC) circular issued on Friday, the gender ticketing system is intended to record whether a passenger is a woman, a man or a child in tickets issued on KSRTC buses from Saturday.
To facilitate the system, Electronic Ticketing Machines (ETMs) have been updated.
The circular stated that conductors in all KSRTC depots should record the gender category of passengers while issuing tickets through the ETMs.
Options for women, men, and children have been included in the ETMs to identify passenger categories when issuing tickets.
The printed tickets generated by the ETMs will also indicate the passenger's category, officials said.
The UDF had promised free KSRTC travel for women across the state during the Assembly election campaign.
UDF, which won 102 of 140 seats, would soon form the government after the Congress party finalises the discussion on the next Chief Minister.
The introduction of gender ticketing is being viewed as an effort to estimate the number of women travelling daily on KSRTC buses before implementing the poll promise.
Some conductors have reportedly raised concerns over the additional time required to record passenger details, especially during rush hours.
