Science & Technology

Black or grey colouration can mean life or death; choose a mate wisely

Helena Tagg presents recent findings that the distribution of black wolves in North America is influenced by the prevalence of canine distemper virus, creating fluctuating selective pressures that drive mate choice.

How Omega-3 fatty acids protect the brain

Omega-3 fatty acids are a well-known nutrient, found in various cold-water fish (such as tuna, mackerel and sardines), nuts and leafy vegetables. It is often said how they are ‘good for your brain’, but is this true? How exactly do they improve cognitive health and wellbeing? A study published on 5th October provides insight into the impact on the brain areas and neurotransmitters involved in memory, learning and mood.