The composition of Earth's oldest crust is uncertain. Comparison of the most ancient mineral grains with more recent analogues suggests that formation of the earliest crust was heavily influenced by re-melting of igneous basement rocks.
The long-term cooling of Earth's mantle is recorded in the declining temperature and volume of its volcanic outpourings over time. However, analyses of 89-million-year-old lavas from Costa Rica suggest that extremely hot mantle still lurks below.
Karl Deisseroth was awarded the 2017 quadrennial 4 million euro Else Kröner Fresenius Prize today for the "discoveries of optogenetics and of hydrogel-tissue chemistry, and for developing circuit-level insight into depression". In this opinion, he was invited to discuss the impact of optogenetics and hydrogel-tissue chemistry , , , , [ […]
The phenomenon of gradual telomere shortening has become a paradigm for how we understand the biology of aging and cancer. Cell proliferation is accompanied by cumulative telomere loss, and the aged cell either senesces, dies or transforms toward cancer. This transformation requires the activation of telomere elongation mechanisms in order to restore telomer […]
Although the Parkin/PINK1 pathway has received considerable attention in recent years as a key regulator of mitophagy in mammals, it is important to recognize that multiple mitophagy receptors like BNIP3, NIX, and FUNDC1 exist that can promote the selective clearance of mitochondria in the absence of Parkin. In this issue, Bhujabal et al expand the repertoir […]
Today, Karl Deisseroth was awarded the 4 million euro 2017 Else Kröner Fresenius Prize for his discoveries of optogenetics and of hydrogel-tissue chemistry, and for developing circuit-level insight into depression. We asked him how his and related work enhances our understanding of the brain and psychiatric diseases at the molecular level.
Reproducibility initiatives seek to promote greater transparency and sharing of scientific reagents, procedures and data. Less recognized is the need to share data analysis routines. Nature Neuroscience is launching a pilot project to evaluate the efficacy of sharing code.
Microglia are highly heterogeneous and plastic. However, the dynamics of their turnover have been difficult to visualize. A new multicolor reporter system reveals a plastic but stable network of microglia during health and disease.
Here at Wildscreen we’re Crowdfunding to bring the ocean to our hometown (Bristol, UK) to raise awareness about our ocean and the amazing creatures that call it home. We need your help! Help us! We need our supporters to help us submerge Bristol into a wild and watery wonderland this October. From sculptures to street […]
As it’s Arkive’s 14th birthday, we thought we would celebrate by sharing 14 ways that you can help save the world! By just doing one of these things you can make a difference, more than one you can make a big difference, and by doing all 14 you are very much on track to save […]
Daniel Craven is Durrell Wildlife Conservation Trust‘s Volunteer Manager, based at Jersey Zoo since 2001. A former professional footballer, Daniel is a lover of travel, animals and conservation. Durrell’s Underdogs is his first film and was made with the fantastic team of Dean Maryon, Bex Bohea, Shaz Syed and Marc Mitchell. It is an official […]
Arkive would like to introduce The Wait, a short film from production company Contra, which follows the journey of a wildlife photographer on a hunt to document the elusive European bison in its natural habitat of the Romanian mountains. The story details how it can take weeks to capture a shot, and the patience required to […]