Mosasaurs were enormous reptiles best known for ruling ancient oceans more than 66 million years ago, but new evidence suggests some also lived in rivers. Scientists reached this conclusion after ...
Then they use the rudimentary spears, which are around 75 centimetres long, to stab bushbabies while they sleep in their ...
Guanaco herds frequently place a ‘sentinel’ on a vantage point to look out for danger while the remainder of the herd are ...
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