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Precociality and altriciality. Precocial species in birds and mammals are those in which the young are relatively mature and mobile from the moment of birth or hatching. They are normally nidifugous, meaning that they leave the nest shortly after birth or hatching. Altricial species are those in which the young are underdeveloped at the time of ...
In general, at the smallest sizes (0.3–1 m (1 ft 0 in – 3 ft 3 in)), Nile crocodiles were most likely to have full stomachs (17.4% full per Cott); adults at 3–4 m (9 ft 10 in – 13 ft 1 in) in length were most likely to have empty stomachs (20.2%). In the largest size range studied by Cott, 4–5 m (13 ft 1 in – 16 ft 5 in), they were ...
The Philippine crocodile is a crocodilian endemic to the Philippines. It is a relatively small, freshwater crocodile. It has a relatively broad snout and thick bony plates on its back (heavy dorsal armor). This is a fairly small species, reaching breeding maturity at 1.5 m (4 ft 11 in) and 15 kg (33 lb) in both sexes.
They are tiny at birth but can grow to be 20 feet long! Two gharial crocodile hatchlings were born at the Fort Worth Zoo, making history. They are tiny at birth but can grow to be 20 feet long!
Cynodontia (lit. 'dog-teeth') is a clade of eutheriodont therapsids that first appeared in the Late Permian (approximately 260 mya), and extensively diversified after the Permian–Triassic extinction event. Mammals are cynodonts, as are their extinct ancestors and close relatives (Mammaliaformes), having evolved from advanced probainognathian ...
The Fort Worth Zoo announced Thursday a remarkably rare birth of four gharial crocodiles, a critically endangered species that the zoo has tried to breed for more than a decade. This is only the ...
Nadya Suleman, better known to most people as the "Octomom" after giving birth to octuplets in 2009 and being a mother to 14 children in total, has welcomed a new addition to the family: a ...
Maternal behavior in vertebrates. Vertebrate maternal behavior is a form of parental care that is specifically given to young animals by their mother in order to ensure the survival of the young. [1] Parental care is a form of altruism, which means that the behaviors involved often require a sacrifice that could put their own survival at risk. [1]