Great bustard Army training area. Here the lack of public access allows them the freedom needed as a large ground-nesting bird. It is classified by the IUCN as "vulnerable". The great bustard was classified with its scientific name in 1758 by Carl Linnaeus, though the species was referred to as "avis tarda" in the much older writings of Pliny the Elder, and hence its names in English (from Old French "bistarda") and some other languages: "abetarda" (pt), "avetarda" (gl), "avutarda" (es). "Otis" is an Old Greek name for "bustard". The specific name, "tarda", is Latin for "slow" and "deliberate", which is apt
Porphyria cutanea tarda Porphyria cutanea tarda Porphyria cutanea tarda (PCT) is the most common subtype of porphyria. The disease is named because it is a porphyria that often presents with skin manifestations later in life. The disorder results from low levels of the enzyme responsible for the fifth step in heme production. Heme is a vital molecule for all of the body's organs. It is a component of hemoglobin, the molecule that carries oxygen in the blood. Hepatoerythropoietic porphyria has been described as a homozygous form of porphyria cutanea tarda, although it can also be caused if two different mutations occur at the