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Showing posts with the label animals

Precision-Grip Thumbs and an A 'New' Archosaur

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Humans have hands . So do apes, monkeys, lemurs, and koalas. For that matter, a chameleon's feet look and act a lot like hands. But they don't have precision-grip thumbs that can line up with any finger. We do: and apparently have had a firm grip on tools for over two million years. Scientists had a pretty good idea about how the common ancestor of dinosaurs, crocodiles and alligators, and birds, developed. A quarter-billion-year-old fossil shows that the situation is more complicated than scientists thought.... More at A Catholic Citizen in America .

Found: Genes for Fins, Paws, and Hands

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Scientists found the genetic code mice use for growing paws — in spotted gar, after they thought about what happened to fish 300,000,000 years back. An amateur fossil hunter found a complete ichthyosaur skeleton in Wales , professional fossil hunters found parts of a critter that isn't quite an ichthyosaur in China, and other paleontologists described a cat-size dinosaur that lived in what's now Montana. Still other scientists named a Cambrian — thing — after an esteemed colleague. Quite a few Cambrian critters are just like nothing that lives on today's Earth. More at A Catholic Citizen in America .

Coping With Change for Millions of Years; Chatty Chimps

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We've been learning a great deal about human origins in the last century: and discovering that there's much more to learn. Scientists studying bones from a cave used by both Neanderthals and the current human model found DNA from a girl who was 'none of the above.' She's from a previously-unknown species, or sub-species, of human Other scientists discovered that chimpanzees communicate in an unexpectedly 'human' way. We live in an exciting era: or a disturbing one, depending on a person's assumptions and preferences.... ... Denisovans lived in or near the Altai mountains about 41,000 years before we started playing baseball. Some scientists call them a different species, others say they're a subspecies of homo sapiens sapiens . Either way, they're part of the human family. We don't know much about the Denisovans yet, apart from a bit of finger bone, two teeth, and a toe bone. That's not much to work with: but scientists found i

The Oldest Known Heart; Tweaking Bacteria; and Looking for Life in the Universe

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A 520,000,000 year old fossilized heart caught my eye this week: so did genetically engineered bacteria, and the continuing search for life in the universe.... ...I don't need an iPad to be Catholic: which is just as well, since I don't own one. My son has smartphone, and that's another topic. Catholics coped quite well without WiFi gadgets in their pockets: and without pockets, for that matter. But our faith doesn't depend on avoiding new ideas and technology. We've even been at the cutting edge of new tech a few times: like Gothic cathedrals , stone buildings with walls made mostly of stained glass. The pointed arches, ribbed vaults, and flying buttresses of Gothic architecture are traditional now, but 12th century traditionalists were horrified at the 'barbarous' style. More at A Catholic Citizen in America .

'Can you pray for my sick dog?'

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The Holy Family with a Bird , Murillo, painted 1650. I was in our parish church in Dublin this afternoon praying when I saw a young man of about 19 come in, kneel in the front pew for a couple of minutess, light a candle in front of the latar of the Blessed Virgin and then leave. I was thinking that it was a hopeful sign to see a young person do this. Indeed, yesterday at Sunday Mass, while the congregation at the Mass at 11am wasn't great, there were some young people present. A few minutes latr thee young man came, approached me and told me his dog was sick. I wouldn't describe him as distressed but he was upset. I asked hiim how old his dog was and he said 'three'. He also gave me the dog's name, 'Sam'. I asked him if he had taken Sam to the vet. 'He's with him right now', he told me. I mentioned two saints to the young man, whose name I asked but won't mention here, who had the gift of healing animals, St Francis and St Martin de Porr