Colombia to cull some of Pablo Escobar's hippos

Colombia will cull some of the 166 hippos descended from a small herd imported by deceased drug lord Pablo Escobar in the 1980s, the country's environment minister said Thursday.

Why invasive ants are a silent threat to our ecosystems

Invertebrates are often described by experts as the "little things that run the world," and ants are certainly one of the top contenders for this role. Ants help ecosystems to function normally and the total weight of all ...

Invasive species are animals, too: Considering a humane approach

Invasive alien species are animals that may pose a threat to biodiversity, but it's time to deal with that threat in a more ethical way. "We need to take a humane, long-term view and learn to co-exist, as some species considered ...

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