There are many reasons for which reported attacks of animals on humans may be increasing in number. We are displacing them from their habitats. There are more of us every day. More areas of the world, which previously were cut off from the charmed circle that enjoys the internet, satellite, and cellular phones by which such attacks can be reported and gain attention, are opening up.
But according to The Daily Telegraph (a newspaper I generally like), it's because animals all over the world have suddenly decided, in the past ten years, to take revenge on humanity.
This is one of the worst pieces of science reporting I've ever seen. To the extent that any of the scientists quoted within believe what I say this story is about, they're nuts. But I don't think any of them believe that animals are taking revenge on humanity, except as a metaphor. Yet that is exactly the thesis the Telegraph, in this story, has twisted or misquoted them to support. Truly truly awful journalism.
I have an equally if not more plausible theory. As the web disrupts the ecology formerly enjoyed by newspapers, they are lashing out at humanity, becoming more partisan, more unreliable, more just plain nuts, in a desperate attempt to defend their ecosystem.