Where did the Word Butterfly Come From?
Millie explained recently what etymology means, and fitting to this week’s theme of Jump! Into Biology, we are are asking ‘where did the word butterfly come from?’.
Who hasn’t seen a butterfly flitting by and enjoyed seeing the flutter of its wings? But have you ever considered why it came to be called “butterfly”? Perhaps you have wondered whether there used to be a large number of yellow, butter-coloured butterflies who gave their name to the whole species?
Well, there is a nice little story attached to the name of the butterfly. In the past, there was a general belief that butterflies ate milk and butter. This probably came about because of the way that flies hover over any food at all that’s left out, and butterflies may have been seen hovering over uncovered pails of milk and butter. Not only that, but this belief developed to encompass the idea that butterflies were either sent out by witches to steal butter, or were in fact, witches themselves, disguised as butterflies. Quite why the witches were out to steal the butter, we don’t know!
Adventure in Uganda
On my second day in Uganda, we went white water rafting on the Nile, near a town called Jinja. The rapids are just 
down river from Lake Victoria, which is where the Nile starts.
The rapids are caused by the force of the water as it crashes over rocks and around islands in the river. There used to be more rapids there, and the famous Bujugali Falls. However, a couple of years ago a dam was built across the river, which has made part of it more like a lake and has increased the water levels, wiping out lots of the rapids, including Bujugali. However, below the dam, the rapids are still just as scary! The rapids are a favourite for rafters and kayakers all over the world.
The rapids are caused by the force of the water as it crashes over rocks and around islands in the river. There used to be more rapids there, and the famous Bujugali Falls. However, a couple of years ago a dam was built across the river, which has made part of it more like a lake and has increased the water levels, wiping out lots of the rapids, including Bujugali. However, below the dam, the rapids are still just as scary! The rapids are a favourite for rafters and kayakers all over the world.
It’s genetic, isn’t it?
Genetics is the study of how genes are inherited in a population. A scientist interested in genetics is a geneticist. If something is genetic, that means it is passed to you by your Mum and Dad. You inherit genes from your parents.
Genes control most aspects of human life, from eye colour to how fast you can run. There are some fun ways to demonstrate genetics in your own family.
Take tongue rolling. The ability to roll your tongue is what we call a dominant trait. If you have the gene for tongue rolling you will be able to roll your tongue.
The Best Urban Beaches
Who else is looking forward to the summer? Whether you call your summer break a ‘vacation’ or a ‘holiday’, there is a good chance that some of you are heading for the beach.
Did you know that around the world there are hundreds of artificial beaches. Some are near the coast, but others are miles away from the seaside – perfect for those who don’t or can’t travel far.
City beaches are sometimes called ‘urban beaches’ like the one above in Cologne, Germany. This can involve the delivery of hundreds of tonnes of sand, to a place where there is no sand.
Islands Brygge, Copenhagen, Denmark
There is no sand here, but it is an oasis of fun in the middle of the city. For many years, this area was run down and neglected, but after a regeneration project, new life is blossoming. Who wants to jump off this diving board?
Festival of Love Beach, South Bank, London UK
This beach is all about relaxing and digging your feet into the sand. No pool (and the chilly Thames is certainly no alternative!) but great views over London, and the South Bank centre often has great activities for kids on offer. Check out their website for details.
Paris Plage, France
The capital city of France can get really hot and muggy in the summer months, so what better way than to cool off at an urban beach? Check out the huge showers in the picture!
Bundek Lake, Zagreb, Croatia
In the south of the city of Zagreb, this park was brought back to life after many years of neglect. It is a popular spot for locals and tourists alike, hoping to cool off in the hot Croatian summers.
Baby Plage, Geneva, Switzerland
Baby Plage, Geneva
This might be the MOST fun urban beach for kids in the world. The huge trees are festooned with old tyres and bicycle tubes, knotted together to create ladders and swings.
San Alfonso del Mar, Chile
Ok, this is a bit of a cheat, cause it isn’t an urban beach, but it is the biggest swimming pool in the world, so we had to include it! It is 8 hectares, and holds 250 million liters of water. That is equivalent of 6,000 familiar 8m long pools! It is part of a privately owned complex in South America.
BONUS BEACHES
Now, don’t tell your parents that we showed you this, and don’t try it out at home, but how awesome does this look? We can’t help thinking that this would be VERY messy, but it looks so relaxing and fun!
The artist Justin Kemp created home sandbox for under his desk.
This was built in Japan in 1993 – an artificial beach with a retractable roof. It was not commercially successful and closed over 10 years ago. Which is a real shame, because it looks really amazing.
Featured Image – Cologne KM689 Beach Bar in Germany