Health

Are blue whales blue, and what is the most common animal? The kids’ quiz

Five multiple-choice questions – set by children – to test your knowledge, and a chance to submit your own junior brainteasers for future quizzes

‘If it’s cold, they stop mating’: New York City rat population may be on the decline

As a result of New York’s most severe winter in years, the city may see a drop from it’s estimated 3 million rats

Blind date: ‘I was hoping for a lovely time, a fancy dinner and to meet the love of my life. I got two out of three’

Brigitte, 27, an admissions officer for a nursery group, meets Jack, 30, a teacher

Vegetarians have ‘substantially lower risk’ of five types of cancer

Study shows lower risk for multiple myeloma as well as pancreatic, prostate, breast and kidney cancers

Cocktail of the week: Nora’s baklava old fashioned - recipe

Honey and cinnamon bring a warming, Istanbul-inspired spin to a classic

‘Who’d guess they’re the same species?’ What Italy’s wall lizards reveal about genetic diversity and why it matters

Understanding biodiversity within species is key to our understanding of why nature works the way it does, say researchers