A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
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Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
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Cats recognise the voice of their owner, but never evolved to care.
22
The elephant brain weighs about 6,000g.
274
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10