Bees suffer dementia due to aluminum pollution, trying to collect nectar and find their way back to the hive suffering from Alzheimer's. Aluminum is thought to have a brain damaging effect on humans, and is even used in dental implants.
The remains of an albatross chick lie on Midway Atoll, a tiny stretch of sand that is one of the world's most remote marine sanctuaries. Nesting chicks fill their bellies with plastic as their parents collect and feed them bits that look to them like food. As a result, tens of thousands of albatross chicks die from starvation, choking, internal bleeding, and poisoning each year.
Nerve cells. Coloured scanning electron micrograph (SEM) of nerve cells, known as neurones. Nerve cells occur in the brain, spinal cord, and in ganglia. Each nerve cell has a large cell body (brown) with several long processes extending from it. The processes usually consist of one thicker axon and several thinner branched dendrites. The dendrites collect information in the form of nerve impulses from other nerve cells and pass it to the cell body.