Today you can’t pick up a newspaper or watch a nature programme without hearing about global warming and the damage we are doing to our planet. However this isn’t the first natural calamity, caused by man in the modern era – until a decade ago it was all about “the Ozone Layer”.
Before 1806 Guernsey was separated at high tide into 2 islands by a channel running across the island from the Vale church to modern day St. Sampson’s harbour. But what was it like before it was filled in ?
Space is, famously, a pretty empty place. So, how is it possible to have weather there?
From the fossil evidence, it’s clear that, species by species, individual by individual, dinosaurs were more massive than any other group of animals that has ever lived on land. It’s as if today’s laws of physics didn’t apply back then allowing them to grow to such a gigantic size. So what could possibly explain this ?
The problem with dinosaurs is that they lived a very long time ago- between 250 million and 65 million years ago – and the vast majority of our knowledge of them is based on fossilized bones and skeletons, which are all that have survived the ravages of time. So can we tell if dinosaurs were warm or cold-blooded ?
On the face of it there seems little hope of working out precisely how a 75ft long, 50 ton Brachiosaur fed itself. However it is possible to make a few guesstimates, by assuming the present laws of physics and chemistry applied 65 million years ago.
Examining how Bees work and interact reveals a highly organised and efficient ‘machine’. They appear to co-operate, communicate and work together as a unit with one purpose. But given that Bees don’t seem to communicate verbally, how do they do it?
Chameleons camouflage themselves in a variety of different ways but most famously by changing the colour and pattern of their skin.