The brightly-coloured small tortoiseshell has suffered a 50 per cent decline in numbers over the last 30 years because of an invasion of parasitic flies. At one point is was feared one of Britain ...

Both tortoiseshells and giant clams are national-level protected animals, meaning their products are prohibited, according to the court. After knowing that the museum began receiving the ...

Calicos and tortoiseshells are more likely to be aggressive — to bite, hiss, scratch, or swipe — when interacting with humans, according to the study published this month in the Journal of ...

The results, published on Wednesday, showed that Small Pearl-bordered Fritillaries and Small Tortoiseshells hit their lowest numbers in 48 years of monitoring. The two species have seen a decline ...

Tortoiseshells are almost always females. The five-month-old kitten was found by the RSPCA and is now being cared for at the Cats Protection centre in Wrexham. Cats Protection Tortoiseshell coats ...

Tortoiseshells are almost always females. The five-month-old kitten was found by the RSPCA and is now being cared for at the Cats Protection centre in Wrexham. Tortoiseshell coats are any two or ...

Pictogram signs found carved on tortoiseshells Photo: Courtesy of Jiahu Ruins Site Management Committee More than 9,000 years ago, a group of people lived in a prehistoric settlement located what ...

But their distinctive color comes with a genetic twist—most orange tabbies are male, while calicos and tortoiseshells are nearly always female. This pattern points to an unknown "orange gene" on ...