The dubious value of milk in otherwise sufficient diets

The dubious value of milk in otherwise sufficient diets

Bos taurus photo © Muhammad Mahdi Kari The dubious value of milk in otherwise sufficient diets Capra hircus photo © Fir0002 Although accepted as a normal part of the human diet in affluent countries, milk is ambivalent in its nutritional value. This is because it...
Another aspect of subtle mimicry of lion by leopard

Another aspect of subtle mimicry of lion by leopard

Leopard (Panthera pardus) © Bernard Dupont The rosettes on the bodies of leopard and jaguar are so similar that they could belong to the same species. However, only the jaguar has noticeably bold black spots on the mid-dorsal line and chest. The relatively muted...
Dingo: jackal as much as wolf

Dingo: jackal as much as wolf

Distribution of Canis lupus photo © Dreg743 Dingo: jackal as much as wolf Distribution of Canis aureus photo © Goran tek-en Canis aureus photo © Prabukumar84 The wolf reaches India but not Indochina, where its closest counterpart is...
Boron as fast food for bones

Boron as fast food for bones

Borax crystals photo © Arum Dulyan                                  Boron as fast food for bones A deficiency of boron may seem an unlikely cause of arthritis and osteoporosis in the human species for three reasons. Firstly, this nutrient is more abundant than any...
The relative elephantine

The relative elephantine

Loxodonta africana photo © Rob Hooft                                  The relative elephantine Although the African bush elephant is often photographed, its true size can seldom be gauged because few photographers have a search-image for scale via familiar objects....