:00:00. > :00:00.Hello, guys, coming up we've got everything you
:00:00. > :00:08.need to know about these webbed wonders, plus the world's biggest
:00:09. > :00:21.Hi, I'm Martin, and let's start with a warning that the world's
:00:22. > :00:23.wildlife numbers are falling faster than previously thought.
:00:24. > :00:26.A new report says populations across the globe have halved
:00:27. > :00:34.Since 1970, two top animal charities have been recording
:00:35. > :00:40.They've used the information to raise awareness about the decline
:00:41. > :00:42.of critically endangered species like the mountain gorilla,
:00:43. > :00:52.Until now, the World Wildlife Fund and London Zoological Society had
:00:53. > :00:54.estimated that wildlife numbers across the globe had fallen by
:00:55. > :01:03.But, by using a new way of working it all out, they now think that
:01:04. > :01:09.In reality, they've more than halved.
:01:10. > :01:12.The number of land animals, like some elephants and rhinos, have
:01:13. > :01:15.fallen by 39%, because of hunting and the fact that lots of areas
:01:16. > :01:17.Marine species, particularly whales, have declined
:01:18. > :01:19.by 39% too thanks to overfishing and pollution of the sea.
:01:20. > :01:22.But worst hit are freshwater creatures like certain species
:01:23. > :01:25.of frog, down by 76% as both loss of habitat
:01:26. > :01:29.The charities now say effective and urgent action is needed to stop
:01:30. > :01:34.Well, joining me now from our London studio is Colin Butfield
:01:35. > :01:47.What is causing the decline? The big thing is people are damaging
:01:48. > :01:55.animal's homes. Things like chopping down forests. Overfishing in the
:01:56. > :01:58.oceans, catching too many action do you mean? And lots of
:01:59. > :02:14.viewers will be thinking what can we People need to make sure that the
:02:15. > :02:18.things that we buy are protecting these areas and so that people who
:02:19. > :02:24.rely on them can have them for future generations. What can be got
:02:25. > :02:33.home to help? Thousands of schools getting packs on how to do things to
:02:34. > :02:36.help. We can send those out. Tell your parents that buying anything
:02:37. > :02:39.out of wood or paper and make sure that is from a sustainable source.
:02:40. > :02:42.Well, sticking with wildlife absolutely loads of you have been
:02:43. > :02:44.in touch about spotting spiders around your houses.
:02:45. > :02:46.It's since we ran a report last week on the warm
:02:47. > :02:51.But are there more out there than usual?
:02:52. > :02:53.And what should you do if you spot one?
:02:54. > :03:04.Spiders, Love them or hate them, these 8 legged brackets are taking
:03:05. > :03:13.over the world. They even took over this news bulletin. Experts have
:03:14. > :03:17.said that the mild autumn is leading to a good spider season. Loads of
:03:18. > :03:30.you have been in touch telling us your stories.
:03:31. > :03:36.Many of you have been wondering how best to deal with spiders. These
:03:37. > :03:40.kids from Bristol are on the hunt for answers. What are the
:03:41. > :03:45.differences between outdoor and indoor spiders? Some prefer living
:03:46. > :03:52.in doors where the temperature might be right, and it can be quite cold
:03:53. > :04:03.outside this time of year. There are 600 spiders in the country. Once the
:04:04. > :04:09.lead? -- each. This 1 is going badly long legs spider. That big white
:04:10. > :04:15.blob at the front has all of her thanks and she carrying around.
:04:16. > :04:20.Should we be worried about him biting? It is very rare. It is not
:04:21. > :04:24.impossible, but there are very few British spiders that are big enough
:04:25. > :04:30.to bite. Even if you did get bitten, it is like a nettle sting or
:04:31. > :04:34.something like that. If you spot a spider, do not fear. Just Telegraph
:04:35. > :04:42.article help you take the spider out. -- just get at adult .
:04:43. > :04:45.Finally, if you thought you were the world's biggest Harry Potter
:04:46. > :04:48.This guy in Mexico has just broken the world
:04:49. > :04:50.record for owning the largest amount of Potter memorabilia.
:04:51. > :04:52.He's collected more than 3,000 different bits.
:04:53. > :04:57.That's all from me, Newsround's back bright and early tomorrow.