Window shades on planes to Flies & Mossies

Why do they tell you to put the window shades up when a plane is landing?

Window shades have to be up on landing so that if the plane crashes the emergency services can see inside the plane and check for survivors and work out what needs to be done first. If they can't see inside they don't know how injured people are.

Where do flies go at night and where do mozzies go during the day?

Flies go up elderly men's nostrils at night ... you can see their legs hanging out the bottom!

Seriously ... flies hang on the underside of leaves, or in dark crevices etc and become dormant as their body temp cools down. When the sun reappears they move to a warm surface and bask until their body temp reaches a level at which the flying muscles will function.

Mosquitoes rest in grass and weeds when they aren’t buzzing around looking for a blood meal. Most species of mosquitoes are at their most active in evenings (sunset) and stay up most of the night until sunrise and certain mosquito species are active during daylight hours if disturbed.