State the Obvious

[Sei Tsubasa]

Beds are to sleep on.  

[GoldenFraggle]

Beds often have pillows on them.  

[FantasyKitty]

Some pillows have feathers in them.  

[kyoshiro2]

Feathers come from birds...  

[Parisian Loafer]

Most birds molt regularly.  

[Sei Tsubasa]

Molting is shedding.  

[Heartbroken-3]

shedding is only for some animals  

[Supar Ingimon]

Shredder fought Turtles.  

[Sei Tsubasa]

Turtles have shells.  

[FantasyKitty]

Some turtles are green.  

[Keiko Kawazaki]

Blue and Yellow make Green  

[Sei Tsubasa]

Blue, yellow, and green are colors  

[FantasyKitty]

There are many colors in the rainbow.  

[Keiko Kawazaki]

Rainbows appear after rain fall.  

[Sei Tsubasa]

When it rains, it's cloudy.