The roots of many trees stretch out four to seven times farther than their leafy branches.
Alien flatworms lay siege to Scotland
Alien flatworms lay siege to Scotland An entirely new species of flatworm has been
discovered in an Edinburgh garden. Scottish earthworms had already
been under siege by the accidentally-introduced New Zealand
flatworm, ‘Artioposthia triangulata,’ and they now also
have this new species to contend with. A flatworm can devour an
earthworm in half an hour. As earthworms are essential for the
fertilization and aeration of soil, this problem is of growing
concern. The decline of the earthworm population due to flatworms
could also pose a threat to other animals that depend on them for
food, for example, hedgehogs, badgers and blackbirds. 21 SEPTEMBER 1996, P. 5
Cool Articles
