Genetic evidence shows loss of three basic tastes in penguins

A University of Michigan-led study of penguin genetics has concluded that the flightless aquatic birds lost three of the five basic vertebrate tastes—sweet, bitter and the savory, meaty taste known as umami—more than ...

What makes mosquitoes avoid DEET? An answer in their legs

Many of us slather ourselves in DEET each summer in hopes of avoiding mosquito bites, and it generally works rather well. Now, researchers reporting in the journal Current Biology on April 25th have made the surprising discovery ...

Research team elucidates evolution of bitter taste sensitivity

It's no coincidence that the expression "to leave a bitter taste in one's mouth" has a double meaning; people often have strong negative reactions to bitter substances, which, though found in healthful foods like vegetables, ...

Tannins in sorghum and benefits focus of genetic research

They might be called a blessing or a curse -- tannins, which are present in certain sorghums, contain health-promoting antioxidant properties, but also provide a bitter taste and decreased protein digestibility. To better ...

Bitter rapeseed

Rapeseed doesn't just contain oil but high-quality protein, too. However, protein extracts from rapeseed have an intense, bitter off-taste. A team led by food chemist Thomas Hofmann has now identified the substance that is ...

For stressed bees, the glass is half empty

When people are depressed or anxious, they are much more likely to see their glass as half empty than half full. In tough times, evidence of that same pessimistic outlook can be seen in dogs, rats, and birds. Now, researchers ...

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