A family member recently bought her dog (working class bearded collie)  Norstar "biomagnetic dog collar" which supposedly "increases energy, brings relief to pain and generally improves health and well being".

I have also seen similar items in sports magazines for use on people with similar effects.

My question is how do these items work, that is if they actually produce an effect on people/animals

We recently bought a house in northern italy and have forest dormice nesting in the roof.  Every summer we find 4 or 5 dead and dying babies lying on the ground.  They haven't yet got fur so must be very young. Are they falling from the nest or have they been ejected?

While working as a postman I saw a bee sitting on the outside step of a building. It was a large bee and as I looked it rose up in a spiral and directly under it a small stream of fluid traced the spiral pattern onto the doorstep. Since then I've been wondering if a bee can pee.

These photos were taken in my parent's garden, Gloucestershire, during the snowy weather in January earlier this year.

The first photo shows the footprints starting near to the back door of their house, the second shows them making their way past the side of the house in a very straight line and the final photo shows them simply stopping.

We're still all very puzzled and wondered if anyone had any theories or ideas?

The colour Blue seems to be a rarity among land animals - mammals especially (we never see a blue cow or a blue dog and so on; only birds and fish display blue)  - is there a reason for this?

How do we know that I see red as you see red, or do we even know this at all? also how do we know the vision of other animals eg, if they see in coulour ect.

When looking at any other species of animal they all look virtually the same other than maybe a few things like weight and size, but when looking at facial or body features they are almost identical.

But when looking at the human species all males other than a few lookalikes or twins look different, likewise with females. Yes we all have two arms and legs, but i'm talking about facial features and body dimensions. Some ahev broad noses, some have long thin noses. These are not things you see in other species. Why is this so??