year,it will molt (蜕皮) at least 20 times. When the
baby mayfly finally become an adult,it won't eat
anything but find his wife and die just after a few
hours.
(水螅型)and nearly every jellyfish has two
morphologies(形态)——polyp and adult.
Thanks For Watching
CH4
This fantastic scene was shot in the ocean of the arctic circle (北极圈).It is produced from the huge differe-nce in temperature between the ocean and the atmosphere.
r
Never die?
Never die?
Never die?
Never
die? Never die?
Never die? Never die?
die? Never die? Never die?
Never dNiee?verNdeiveer?die?
Never
Never die?
die? Never
they were wrong and leave it the water and flow into the
still a secret.
ice-cream-colour lake.
Which are not ice and snow?
When bacterias(细菌) break down the dead creatures,CH4 is released and imprisoned in the ice .Then,it will look like a string of bubbles(泡泡) .
of plant in the water which can While the glacier(冰川) is
produce carotenes(胡萝卜素). melting (融化),the pink
But now some scientists find grains will dissolve (溶解) in
The ugly white trees is caused by some
s.
After a flood in Pakistan, many spiders climbed up
the trees to avoid being drowned.After that,they spined white webs(结网) on the thees.
I Can't Blieve It
There aWrehmichanisyncotlotuurrfeu?l lake
Made By Photoshop
Jiuzhaigou
Peaple used to think that the The rock surrounding the
pink colour came from a kind lake is purple and pink.
At the poles,when
the temperature is decreased to a certent extent,
the salt will be separated out.Then
the seawater will be frozen and extend to the seafloor.Wher-ever it goes,the creatures
will be frozen to
death
How Long Can They Live ?
Mayflies are always
considered to be
ephemeral (朝生暮死). In fact,when a “mayfly” is
born,it is ugly and don't have its wings.In about a
die?
Never die? Never die? Never die?
Never die?
Never die?
Never die?
Never die?Never die?
Egg jellyfish (Medusa) Live for at most several years
Never die?
Turritopsis nutricula (liisis(危机),its most cells will dedifferentiate and it will be back to baby.Then it will grow as it used to. Guangzhou Daily:They just become Polyp
Wheat(小麦) flower Be in full bloom for: 5 to 30 minutes
Epiphyllum，which belongs to Cactaceae (仙人掌科) Be in full bloom for: 3 to 5 hours
Cotylorhiza tuberculata
Water overflows from the trunks which are influenced by some bacterias (细菌).
This is frost(霜花) . Though it looks pure, there are a lot of bacterias inside it.