In a smallish room, body heat draws particles near, enhancing inhalation

Most models involving inhalation of particulates of various sorts (e.g., microbes, pollen, dust, toxins) assume a somewhat even distribution of the particulates in the air that is inhaled. While such an assumption helps to simplify exposure calculations, it is factually inaccurate in some circumstances...

Humans can transmit diseases to gorillas

Prior posts have noted and described a number of human diseases that had their origin in animals. Now it appears that some diseases can be transmitted from humans to gorillas. Ecotourism has been seen as a boon for countries with "interesting" biota; it provides funding for protection of...