Spiders that hunt at night often have a special layer at the back of their big eyes. It acts like a mirror to bounce light back into the eyes. On a dark night, this reflected light makes the spider's eyes seem to glow!
Baaa and humbug
Baaa and humbug Sheep and goats are not just botanical vacuum
cleaners, turning grasslands into deserts. Their skills at ridding
the land of vegetation are now being used in the USA to rid woods
and fields of excess plants and seedlings. Their constructive
nibbling is helping to reduce the threat of forest fires and to
trim thick bush areas without the need for dangerous herbicides or
mowers. 6 JULY 2000