Why Reindeer Don’t Go Snowblind

Polar explorers and the Inuit often experience photokeratitis, a painful eye condition commonly referred to as snow blindness. It is caused by prolonged exposure to ultraviolet (UV) rays from the sun Read More...

Caller ID in Goitred Gazelles

As their name implies, male goitred gazelles (Gazella subgutturosa) have a lump, resembling the human Adam’s apple, at the front of their necks. Females of the species have a smaller lump, reflecting their smaller larynx. Goitred gazelles are relatively vocal; they produce both oral and nasal calls. Males emit Read More...

Saiga Bottlenecks

Saiga antelope are strange looking creatures (Figure 1). They originally ranged over vast areas of the Eurasian steppes, from France to Mongolia. During the Pleistocene, they even migrated into North America. Today, however Read More...

Necks-for-sex, or Necks-for-food? Why are giraffe necks so long?

Why has it been so hard for scientists to explain why giraffes (Giraffa camelopardalis) have such long necks? After all it has been almost 140 years since Charles Darwin proposed that competition for food among African browsers led to Read More...