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The killdeer lays a clutch of four to six eggs that are buff to beige, with brown markings and black speckles. The eggs are about 38 by 27 mm (1.5 by 1.1 in) in size, [ 7 ] and laid at intervals of 24 to 48 hours. [ 3 ]
Egg incubation is the process by which an egg, of oviparous (egg-laying) animals, develops an embryo within the egg, after the egg's formation and ovipositional release. Egg incubation is done under favorable environmental conditions, possibly by brooding and hatching the egg.
The egg is not retained in the body for most of the period of development of the embryo within the egg, which is the main distinction between oviparity and ovoviviparity. [1] Oviparity occurs in all birds, most reptiles, some fishes, and most arthropods. Among mammals, monotremes (four species of echidna, and the platypus) are uniquely oviparous.
Goat kids will stay with their mother until they are weaned. Most mammals are viviparous, giving birth to live young. [1] However, the five species of monotreme, the platypuses and the echidnas, lay eggs. The monotremes have a sex determination system different from that of most other mammals. [2]
In species with precocial young, distraction display is most frequent just after hatching, while in altricial young, it is most frequent just before fledging. [ 15 ] [ 25 ] [ 26 ] This may represent a greater tendency to display at the times when parental investment in young is greatest, and the young are still very vulnerable. [ 25 ]
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A wide array of Democratic leaders, including Senate Majority Leader Chuck Schumer (D-NY) and Reps. Jamie Raskin (D-Md.) and Jim Clyburn (D-SC), are also featured giving Biden praise.
Popular music's favorite country performer is embracing rock and roll.. That's the most substantial take from Grammy-nominated and 19-time Billboard Music Award-winning artist Morgan Wallen's ...