Nile crocodile zebras and blue wildebeests ("Connochaetes taurinus"), picking off hundreds of these large ungulates annually. All domesticated ungulates and pet animals will on occasion be hunted by Nile crocodiles, up to the size of dromedary camels ("Camelus dromedarius") and cattle ("Bos taurus") In Tanzania, up to 54 head of cattle may be lost to crocodiles annually, increasing the human-crocodile conflict level. Goats ("Capra aegagrus hircus"), donkeys ("Equus africanus asinus") and dogs ("Canis lupus familiaris") may also rank amongst the most regularly recorded domesticated animals to be taken by Nile crocodiles. Particularly large adults, on occasion, take on even larger prey, such
Equus (genus) each other both visually and vocally. Human activities have threatened wild equine populations. The word "equus" is Latin for "horse", and is cognate with the Greek ἵππος ("hippos"), "horse", and Mycenaean Greek "i-qo" /ikkʷos/, the earliest attested variant of the Greek word, written in Linear B syllabic script.; compare the alternative development of the Proto-Greek labiovelar in Ionic ἴκκος ("ikkos"). The genus "Equus" was first described by Carl Linnaeus in 1758. It is the only recognized extant genus in the family Equidae. The first equids were small, dog-sized mammals (e.g. "Eohippus") adapted for browsing on shrubs during the Eocene, around