Category Archives: Biology

Rabies is a fatal viral disease largely transmitted to humans by infected animals—predominantly from domestic dogs. The contagion is usually through the saliva from rabid animals. The disease is entirely preventable through prompt administration of post-exposure prophylaxis to bite […]

«Mosquito» is one of the few words, together with «guerrilla», «adobe», «cigarrillo» and some others that Spanish culture has brought to other languages. I am not sure whether we should be proud of this legacy. The «little fly» is […]

The nose is one of the strangest structures of human anatomy. It is much more different from our closest relatives than other parts of the body, it is sexually dimorphic, being on average larger in males than in females, […]

Cooperation is the process of groups of individuals working or acting together for common or mutual benefit. Members of social insect societies cooperate in sophisticated modes. The specialization of individual ants in performing particular tasks or roles tend to increase […]

Stammering, stuttering or alalia literalis is a speech disorder characterized by involuntary repetition and prolongations of sounds, syllables, words or phrases and involuntary silent pauses or blocks where the affected person is unable to produce sounds. Around 1-in-20 children […]

Author:. Pasquale Pellegrini holds an M.Sc. in Biotechnology from Università degli Studi di Bari (Italy). He moved to Barcelona to pursue his Ph.D. at the Bellvitge Biomedical Research Institute (IDIBELL), in Barcelona, where he uncovered key mechanisms of mammary stem […]

Neanderthals (Homo neanderthalensis) were a species –some say a subspecies although most authors consider there is enough evidence to consider them as a separate species– of human closely related to us. They were firstly discovered in a cave in the […]

Hibernation is a state of inactivity and metabolic depression used by some mammals to survive a cold winter. It may last several days, weeks, or months depending on the species, environment temperature, season, and individual’s body condition. Usually, hibernating animals […]

In multicellular organisms, embryonic stem cells develop into any of the different cell types that will form the adult, and along the development, they silence or activate different parts of the genome, giving rise to distinct cell identities, which are […]

One hears blue blood and immediately thinks about royal family members. Some biologists, though, immediately will think about Limulus polyphemus, a marine animal commonly known as the horseshoe crab. Why? Because, very surprisingly, this arthropod actually has true blue blood! […]