Decode strange natural phenomena that happen in autumn

When the fall comes, these extraordinary natural phenomena will happen, causing people to be extremely surprised as 'the shadow of the bear', the river turning the color in season, the sunset of the sun at the same time .

Unusual natural phenomena happen every time the autumn comes always attract researchers. For example, the phenomenon of 'the shadow of the bear' (Shadow of the Bear) takes place in Cashiers, North Carolina, USA.This is a natural phenomenon that appears nicely every fall, beginning with a small black shadow at the bottom of the valley, then developing into a bear shape.The phenomenon only appears in about 30 minutes at 17:30 pm from mid-October to early November.

Migrant and autumn reindeer in Alaska, USA.A reindeer herd can be up to 100,000 crossing the river during the migration season.The journey can last more than 1,600 miles per year.This animal is almost constantly moving, but migrates mainly in the fall, beginning in late August to mid-October every year.

Cano Cristales River, Colombia - the river changes color seasonally.Cristales Canõ River is known for many names such as rainbow river, five colors river or river from heaven.In certain months of the year, it will carry colors ranging from red, blue, yellow, orange to green due to an endemic plant called the macarenia clavigera.Depending on the water level and the amount of light, the macarenia clavigera will have different colors, the most vivid colors are in the fall.

Watch sunrise and sunset at the same time in the Brunswick Islands, North Carolina, USA.Late fall and winter, there are rare differences in the Brunswick Islands, where you can sit on Oak Island, the small island of Ocean or Holden Beach and watch both the sunrise and sunset events. same time.

In the fall, more than 1 million white snow geese fly over Squaw Creek National Park in Missouri, heading towards the Arctic, during their twice-year migration over a distance of about 4,000km. of heavenly geese through Missiouri state create a stunning scene, they fly at a speed of 60-70km / h at an altitude of about 900m.

Coral spawns in the island of Bonaire, off the northern coast of South America.Each year, around September and October, some coral species in Bonaire island will begin their breeding cycle.Under the surface of the water will appear tiny white, orange and pink patches erupting from coral and floating along the water.

See terns at Goose Island, Connecticut, USA.This animal is often concentrated in Goose Island at sunset during late summer and in the fall.With white breasts and back shining blue, spectacle of terns flying and flying in the sky is extremely beautiful.

Tallulah , Georgia, USA is one of the most spectacular places, with a depth of nearly 1,000m.In the fall, the amount of water on the falls of the waterfall is 10 times greater than normal, turning Tallulah into one of the seven wonders of Georgia, especially when combined with the red and yellow colors of autumn leaves.