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Ostrich eggs are the largest of all eggs, [4] though they are actually the smallest eggs relative to the size of the adult bird — on average they are 15 cm (5.9 in) long, 13 cm (5.1 in) wide, and weigh 1.4 kilograms (3.1 lb), over 20 times the weight of a chicken's egg and only 1 to 4% the size of the female. [5]
They are the heaviest and largest living birds, with adult common ostriches weighing anywhere between 63.5 and 145 kilograms and laying the largest eggs of any living land animal. [3] With the ability to run at 70 km/h (43.5 mph), [ 4 ] they are the fastest birds on land.
The eggs measure about 9 by 14 cm (3.5 by 5.5 in) – only ostrich and emu eggs are larger. The male incubates those eggs for 50–52 days, removing or adding litter to regulate the temperature, then protects the chicks, which stay in the nest for about 9 months. He defends them fiercely against all potential predators, including humans.
For example, the principal predators of the black oystercatcher's eggs include raccoons, skunks, mink, river and sea otters, gulls, crows and foxes. The stoat (Mustela erminea) and long-tailed weasel (Neogale frenata) steal ducks' eggs. Ostrich eggs are vulnerable to many predators ranging from mongooses and Egyptian vultures, to hyenas. [20]
Ostrich eggs are the largest of all eggs, [68] though they are actually the smallest eggs relative to the size of the adult bird – on average they are 15 cm (5.9 in) long, 13 cm (5.1 in) wide, and weigh 1.4 kg (3.1 lb), over 20 times the weight of a chicken's egg and only 1 to 4% the size of the female. [69]
Masai ostriches are not the main prey items for key carnivores. [22] Only lions are the central predator of adults in most areas, but many species prey on ostrich eggs including jackals, hyaenas, lions, and other avian species. [4] [5] Egg predation poses the greatest threat to the reproductive success of wild ostrich populations. Documented ...
The "I Have 6 Eggs" riddle has gone viral across social media, puzzling many with its deceptively easy setup. Despite its basic premise of just counting some eggs, this riddle has proven a bit ...
Ostrich farming grew out of this need, and humans harvested feathers, hides, eggs, and meat from the ostrich. Emu farming also became popular for similar reasons and for their emu oil. Rhea feathers are popular for dusters, and eggs and meat are used for chicken and pet feed in South America. Ratite hides are popular for leather products like ...