• Human thigh bones are stronger than concrete.
• If a person or an animal is born colourblind, they instantly have excellent night vision.
• In seahorses, it's the male who gives birth to the young.
• You shed and regrow your skin every 28 days, that's about 1000 times in a lifetime.
• The blue whale can produce the loudest sound among all animals - up to 188 decibels - and detected as far away as 853 km/s
• The giraffe is one of the quietest animals: it has no vocal chords to make any noise.
• Mercury is the only metal that is liquid at room temperature.
• Mosquitoes like the scent of estrogen, hence, women get bitten by mosquitoes more often than men do.
• The Brazilian “railroad worm” has a head that glows with a red light, and has a green light on its side.
• The biggest egg in the world is the ostrich egg. It could take as many as 30 chicken eggs to equal its volume, and up to 2 hours to hard boil.
• The largest frog in the world is ‘The Goliath Frog of Gabon’ in West Africa. It can grow as big as 33cm long and up to 3kg heavy.
• The life of an eyelash is about 5 months.
• When the queen of a clownfish school dies, a male clownfish changes its gender to become female and takes her place.
Friday James is an S5 student
at Lycee De Kigali Secondary School