Monarch Butterfly at the Artis Royal Zoo (also known as Natura Artis Magistra), Amsterdam (Holland)
The Monarch Butterfly is a milkweed butterfly (subfamily Danainae) in the family Nymphalidae. It may be the most familiar North American butterfly. The upper side of the wings is tawny-orange, the veins and margins are black, and in the margins are two series of small white spots.
The fore wings also have a few orange spots near the tip. The underside is similar, but the tip of the fore wing and hind wing are yellow-brown instead of tawny-orange and the white spots are larger.
The Butterfly Pavilion is the largest of its kind in the Netherlands, covering a thousand square meters and housing thousands of butterflies.
Twice a day, butterflies that have just crawled out of their cocoons are released into the pavilion.