Tree of life

What very old trees can teach us about life, death, and time. Jared Farmer writes: What’s the oldest known living thing, and how do we know? Why should we even want to know? The explanation is a history of curiosity and care. It’s about our long-term relationships—spiritual and scientific—with long-lived plants, as long as long can be. It’s all about trees. A tree is a plant that people call a tree—a term of dignity, not botany. Although people construct the meaning of “trees” and assign age value to the vascular plants they call “ancient trees,” people cannot themselves create life that grows in place for centuries. Exclusively, solar-powered organisms enact that miracle. Among plants, there are ephemerals, annuals, biennials, perennials—and, Read More ›

A new study is out trying to find the LUCA (Last Universal Common Ancestor). Needless to say, things got even worse for those who place their belief in Darwinian thinking. Because the Concluding Remarks section is so devastating, I’m blockquoting the whole thing: Our work furnishes a new variable for the assessment of protein family evolution which compliments previous approaches based on conserved presence and phylogenetic topology. Using phylogenetic tree based approaches of the type used here, only limited information can be gained about the LUCA, leaving specific details on physiology largely speculative. Analysis of proteins such as the reverse gyrase, hydrogenase, and nitrogenase discussed here and elsewhere (Boyd et al., 2011a, b; Catchpole and Forterre, 2019) does not support Read More ›

The promised interview has arrived! Bob Murphy interviews Winston Ewert on various topics around Intelligent Design, including Winston’s latest paper on life’s dependency graph.