The first postage stamps were issued in 1840, and the geography of the world has since seen lots of changes. Some of the most interesting collectible stamps are those issued by states that no longer exist â these states are known as âdead countriesâ by philatelists.
Eggs are off-white and marked with brown and lavender. Young turkey vultures hatch in 30 to 40 days and then take another 9 to 10 weeks to learn how to fly. They are are independent about a week later.ggs are off-white and marked with brown and lavender. Young turkey vultures hatch in 30 to 40 days and then take another 9 to 10 weeks to learn how to fly. They are are independent about a week later.
1 Eagle eggs hatch one to several days apart depending on when they were laid. 2  Eggs hatch consistently after 35 days of incubation. 3  About 4 days before hatching the chick develops an egg tooth at the top of its bill. Eggs hatch consistently after 35 days of incubation. 2  About 4 days before hatching the chick develops an egg tooth at the top of its bill. 3  From inside the egg the chick pokes a hole in the membrane separating it from the air bubble at the top of the egg shell.