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Tiki the Penguin's guide for kids which explains why so much life on Earth is in trouble
Tiki the Penguin's guide for kids which explains why so much life on Earth is in trouble
I'm a dodo, now extinct because of humans

Drying up? Lakes, rivers and wetlands

Frogs are in danger everywhere. Why?These are home to many species like birds, amphibians (such as frogs , toads, and newts) and fish. Yet in the last few decades, these creatures have declined greatly in numbers and in health.

https://www.flickr.com/photos/usdagov/ The very existence of frogs worldwide is being threatened by a killer fungus. Photo Credit: National Science Foundation
https://www.flickr.com/photos/khynniman/
A toad; very useful in the garden. Photo: Kristie
http://news.mongabay.com/2010/0208-hance_luristannewt.html
The fiery Luristan Newt. Photo: Dr. Richard Bartlett

Dumping poisons in the rivers

Particularly worrying are the frogs and other amphibians. Nobody knows for sure why these little animals are dying so fast but it seems likely that chemical pollution (particularly certain types of pesticides) and global warming are at least partly responsible.

The primary causes of amphibian extinctions are pollution, loss of habitat, climate change, invasive species, road mortality, over-harvesting for the pet and food trades, and the infectious disease chytridiomycosis, which is spread by human activity. Source: Save The Frogs

And there's the usual problem with humans wanting more land for farming and cities, so wetlands get drained and rivers get 'tamed' to try and stop them flooding. Then some people have powerboats and go fishing for fun and others like shooting wetland birds for fun.

The baiji - now extinct. Image: Alessio Marrucci
Sad case of river dolphin
This dolphin, the 'baiji', used to be found only in China's longest river, the Yangtze. There were about 400 in the late 1980s but by 2006, it had become extinct.
Source: National Geographic


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