In graduate school, I earned beer money by modeling for life drawing classes in various art departments. (Don’t judge, grad school doesn’t pay well and beer isn’t free.) In the long hours standing around, I would survey the room and count how many of the aspiring artists were left-handed. Later in my career, I did the same thing — counting lefties, not standing around naked — in the biology classes I taught.

Funny thing, in any given class, around 10 per cent of the students were lefties. It turns out this is true for all human populations, not only middle-America university classes. Globally, about 90 per cent of people are righties. But why?

Just as many people are trying to eat less processed food to improve their health, some dog owners are turning away from conventional pet food. Instead they’re trying to get back to what they see as a more traditional “butcher’s dog” diet of raw meat, albeit with pre-prepared products that can be served easily and frozen for convenience.

A recent study has raised concerns about the health risks of these raw meat based diet products as possible sources of some bacterial and parasitic diseases. But just how big a problem is this, and who is really at risk?

The Chinese government’s ongoing attempts to create a social credit system aimed at rating the trustworthiness of people and companies have generated equal measures of fascination and anxiety around the world. Social credit is depicted as something uniquely Chinese – a nefarious and perverse digital innovation that could only be conceived of and carried out by a regime like the Chinese Communist Party.

Nearly everyone is familiar with emoji, those popular icons that appear in text messages, emails and social media platforms. Emoji are often used as light-hearted adjuncts to text, or to soften the blow of a message.

Emoji can be viewed as overly simplistic in some contexts. For example, government officials were questioned when Foreign Minister Julie Bishop conducted an interview using just emoji, and described Russian President Vladmir Putin using an angry face  

It surprises most millennials to learn that only about 10 percent of all retail purchases are actually made online. Each semester, when I ask hundreds of undergraduate business students to estimate, they consistently guess that between a quarter and half of all retail spending happens on the internet. But this holiday shopping season, as ever in the past, the overwhelming majority of purchases will still happen within four physical walls of a store.

Each year the holidays bring with them an increase in both the consumption of alcohol and concern about drinking’s harmful effects.

Alcohol abuse is no laughing matter, but is it sinful to drink and make merry, moderately and responsibly, during a holy season or at any other time?