9 sentences with “mammals”

Dolphins are marine mammals that can jump out of the water.

Foxes are cunning animals that feed on small mammals, birds, and fruits.

Raccoons are nocturnal animals that feed on fruits, insects, and small mammals.

Dolphins are aquatic mammals that communicate through sounds and are very intelligent.

Urea is the most important of the nitrogenous compounds in the urine of man and most mammals.

The camel also has an amazing "turbine" system in its nose, which allows air to be removed almost as dry as it was inhaled (unlike other mammals, where the exhaled air contains high humidity).

Humans, mammals in general (e.g. domestic animals) and birds maintain a constant temperature in the face of environmental changes. We say that they are homeotherms (from homeo: equal; thermos: temperature). This is why people should avoid losing body heat by wearing warm clothing.

Almost 3,500 years had passed since the formation of the Earth when the continents filled with life: there were amphibians, saurians, mammals, higher primates and finally humans, organisms that, on closer inspection, are nothing more than highly advanced multicellular eukaryotes, distant descendants of some self-replicating molecule from long ago and far away.

The chemical synapse, on the other hand, is unique to the nervous system of higher mammals and requires the intermediation of hormones to distribute the message. The neurotransmitters lodged in the axon of one neuron are secreted by it and taken up by a neighbouring cell - located at a distance of about 20 nanometres - which in turn secretes them for absorption by another, resulting in a perfect, uninterrupted chain of communication.