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Whales are fully aquatic, open-ocean animals: they can feed, mate, give birth, suckle and raise their young at sea. Whales range in size from the 2.6 metres (8.5 ft) and 135 kilograms (298 lb) dwarf sperm whale to the 29.9 metres (98 ft) and 190 tonnes (210 short tons) blue whale, which is the
A full-grown adult dromedary camel stands 1.85 m (6 ft 1 in) at the shoulder and 2.15 m (7 ft 1 in) at the hump. [13] Bactrian camels can be a foot taller. Camels can run at up to 65 km/h (40 mph) in short bursts and sustain speeds of up to 40 km/h (25 mph). [ 14 ]
Pangolins are insectivorous. Most of their diet consists of various species of ants and termites, and may be supplemented by other insects, especially larvae. They are somewhat particular and tend to consume only one or two species of insects, even when many species are available to them.
The animals are vulnerable to bushfires due to their slow speed and the flammability of eucalypt trees. [26]: 26 The koala instinctively seeks refuge in the higher branches, where it is vulnerable to heat and fire. Bushfires divide the animal's habitat, which isolates them, decreases their numbers and creates genetic bottlenecks.
Adaptation is the evolutionary process whereby an organism becomes better able to live in its habitat or habitats. [25][26][27] 2. Adaptedness is the state of being adapted: the degree to which an organism is able to live and reproduce in a given set of habitats. [28]
A dragonfly in its final moult, undergoing metamorphosis, it begins transforming from its nymph form to an adult. Metamorphosis is a biological process by which an animal physically develops including birth transformation or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation. [1]
The smallest bat is Kitti's hog-nosed bat (Craseonycteris thonglongyai), which is 29–34 mm (1 + 1 ⁄ 8 – 1 + 3 ⁄ 8 in) long with a 150-millimetre (6 in) wingspan and weighs 2–2.6 g (1 ⁄ 16 – 3 ⁄ 32 oz). [125] It is also arguably the smallest extant species of mammal, next to the Etruscan shrew. [126]
Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill the host) and parasitoidism (which always does, eventually).