The second group is the Diurnal Migrants, who migrate during the day. These are often the insect-eaters jays, swifts, swallows, larks, etc. They benefit greatly from the daytime thermals during their journey—not for reasons of soaring, like raptors use thermals, but rather because these warm updrafts send up clouds of insects from the fields, right into the paths of the migrating birds, like a food delivery service. Most insects are so light that a gust of wind or a thermal current can lift them high int
“Angiostrongyliasis, also known as rat lungworm, is a disease that affects the brain and spinal cord. It is caused by a parasitic nematode (roundworm parasite) called . The form of is only found in rodents.”
The decline is not entirely understood but the main factors are thought to be the loss of their habitat in Britain’s towns and countryside – where farming has intensified – as well as road deaths. The fragmentation of habitat is also a problem as hedgehogs roam up to a mile every night to look for food and mates. possible rise in badger numbers, which can eat hedgehogs, as a possible cause.More than half of people surveyed had never seen a hedgehog, once common in UK gardens
People sometimes pick up these unusual blue sea slugs after they wash up on beaches. When humans are stung by , the venom stored in the nematocysts is injected under the skin. In stings from the Portuguese Man o&apos War, this venom has been shown to cause fever, shock, problems with the heart and lungs. In very rare cases this venom has even led to death.The of this species bears serrated teeth.
If you spot slugs and snails in your garden or local park, be extra vigilant when out walking your dog. Always up and safely dispose of your dog&aposs faeces, and consult your vet as soon as possible if your dog becomes unwell.
Explorers looking to set up new colonies carried smallpox, measles, and other deadly viruses with them to distant lands. Even the vessels used to get there contributed to the spread of disease. Infected water from cargo ships traveling to South America, for example, has been blamed for introducing cholera there.