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A group of fish characterised by a cartilaginous skeleton, well-known species include...
The striped horse of the savannahs that pedestrian crossings were named after.
Several analogous types of eyes have developed independently through convergent evolution.
Honeybees produce a sweet and nutritious substance, honey.
Otters are semi-aquatic predatory mammals.
This owl species living in the furthest northern regions of our planet has adapted brilliantly...
Red deer are even-toed ungulates, ruminants. Their males have spectacular antlers.
The best known cartilaginous fish, sharks, do not chew their food; they use their razor-sharp...