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The archaeopteryx shows characteristics of both birds and reptiles. It is probably the...
This video presents the diet and hunting behaviour of wolverines, Siberian tigers and snow leopards.
Predators on top of the food chain prey on other animals. Their relationship is hunter and hunted.
The anatomy of annelids is demonstrated through the example of the common earthworm.
Chameleons are reptiles with an ability to change their colours.
The large white butterfly is a common species of butterflies, through which we...
The poisonous bite of the Chilean recluse spider poses a serious threat to human health.
Several analogous types of eyes have developed independently through convergent evolution.