Cell biologists like Sarkar are fascinated by Giardia, not only because it is pathogenic but also because of “the toolkit it uses to go through life”.
Surrogate parents of unrelated nestlings could forgo food while incubating eggs and foraging for chicks, and they lose weight. What makes them act in such a generous manner? Are they altruistic?
Born in spring, the common shrew attains about 70% of its adult body mass by summer but loses some of it over the following winter. Even its brain becomes smaller.
When evolving humans realised that the death of the body brings the death of the mind, we became the only animals to desire and choose suicide as mental oblivion.
Since there exists no known human population without menopause, there is no direct way of studying the emergence of the phenomenon.
Teachers and critics called it a move to avoid raising “generations who ask questions”, while the government argued evolution was “above the students’ level” of comprehension.
Indigenous people in Africa communicate with a species of bird called the great honeyguide by making specific calls in their quest for beehives.
A tool used by biologists to study evolution is called phylogenetics, in which the scientist attempts to make connections among extant species based on a set of measurable properties.
Let’s be pessimistic and assume the apocalypse is going to happen. What does Earth look like afterwards?