Freshwater ecosystems across the United States are absorbing the consequences of decades-old decisions to import large non-native species for aquaculture, pest control, and the pet trade. From black ...

Discover the Black Swan, Australia's nomadic waterbird. Learn about their unique Triumph Ceremony, herbivorous diet, and the origin of the 'black swan event'.

Other eye-catching species include the 140cm-tall jabiru stork, the peculiar-looking South American tapir and the yellow anaconda, a semi-aquatic snake that can grow more than 4m long – that's roughly ...