There are around 800 extant species of cephalopod, although new species continue to be described. An estimated 11,000 extinct taxa have been described, although the soft-bodied nature of cephalopods m ...
Unlike most other molluscs, all cephalopods are active predators (with the possible exception of the bigfin squid and vampire squid). Their requirement to locate and capture their prey has been a prob ...
A raven is one of several larger-bodied members of the genus Corvus. Most have black plumage and large beaks but their plumage can differ slightly in some species. Most species have dark brown irises ...
The best-known rat species are the black rat (Rattus rattus) and the brown rat (Rattus norvegicus). The group is generally known as the Old World rats or true rats, and originated in Asia. Rats are bi ...
Escaped parrots of several species have become established in the wild outside their natural ranges and in some cases outside the natural range of parrots. Among the earliest instances were pet Red Sh ...
Psittaciform diversity in South America and Australasia suggests that the order may have evolved in Gondwanaland, centred in Australasia. The scarcity of parrots in the fossil record, however, present ...
Touching is an important form of communication among elephants. Individuals greet each other by stroking or wrapping their trunks; the latter also occurs during mild competition. Older elephants use t ...
The word "elephant" is based on the Latin elephas (genitive elephantis) ("elephant"), which is the Latinised form of the Greek ?λ?φα? (elephas) (genitive ?λ?φαντο? (elephantos)), probab ...
The name is originally from Greek δελφ?? (delphís), "dolphin", which was related to the Greek δελφ?? (delphus), "womb". The animal's name can therefore be interpreted as meaning "a 'fish' ...
In the early Miocene, about 22 million years ago, the many kinds of arboreally adapted primitive catarrhines from East Africa suggest a long history of prior diversification. Fossils at 20 million yea ...
Born to Lorel and Bosandjo at Yerkes field station at Emory University and moved to the Language Research Center at Georgia State University, Kanzi was stolen and adopted shortly after birth by a more ...
Despite the alternative common name "pygmy chimpanzee", the bonobo is not especially diminutive when compared to the common chimpanzee. "Pygmy" may instead refer to the pygmy peoples who live in the s ...
The genus Pan is part of the subfamily Homininae, to which humans also belong. These two species are the closest living evolutionary relatives to humans, sharing a common ancestor with humans about fo ...
Dogs are pack animals by nature and can understand social structure and obligations, and are capable of interacting with other members of the pack.Dogs are able to read and react appropriately to huma ...
The book's ranking focuses on working and obedience intelligence. Coren sent evaluation requests to American Kennel Club and Canadian Kennel Club obedience trial judges, asking them to rank breeds by ...
