Human ancestor got to ride on the backs of dinosaurs
By Catholic Online (NEWS CONSORTIUM)
1/15/2014 (3 years ago)
Catholic Online (www.catholic.org)
Having missed the dinosaurs by quite a few millennium, give or take a few, humans missed out on the golden opportunity to ride on the backs of them. It's heartening to know that a distant relative of the human did get to ride on the backs of dinosaur, although it must be stressed that the first placental mammal held little resemblance to a human. See above picture.
According to the study, as published in the latest issue of Biology Letters, the first placental mammal lived from 88.3 to 91.6 million years ago.
LOS ANGELES, CA (Catholic Online) - According to the study, as published in the latest issue of Biology Letters, the first placental mammal lived from 88.3 to 91.6 million years ago. Placental mammals today include humans and all other mammals, save those that lay eggs or have pouches, which are known as marsupials.
Then again, this may not be the case - maybe mammals and dinosaurs never frolicked together under prehistoric skies. Based solely on fossil evidence, which theorized this "mother of all placental mammals" arose after the dinosaurs died out. Researchers now believe that it preceded the non-avian dinosaur extinction.
Another sobering thought: if the dinosaurs didn't die off, we wouldn't be here.
"When dinosaurs died out, many ecological niches became vacant, and placental mammals took over," lead author Mario dos Reis says. "The placental ancestor diversified and evolved into the modern mammals we see today, such as rodents, deer, whales, horses, bats, carnivores, monkeys and ultimately humans."
"If dinosaurs had not died out, then placental mammals may not have had the opportunity to diversify the way they did, and our own species would not have evolved!" added dos Reis, a research associate in the Department of Genetics, Evolution and Environment at University College London.
Analyzing 36 complete mammal genomes together with information from the mammal fossil record, the results determined placental mammals originated in the Cretaceous.
Reis explained that the DNA of organisms accumulates changes, called mutations, at a constant rate in time, which is referred to as the "molecular clock."
As an example, certain DNA in humans and other apes mutates at a pace of about one percent every 10 million years. The molecular clock is said to run a bit fast in some species and a little slow in others.
Copyright 2017 - Distributed by THE CALIFORNIA NETWORK
Pope Francis Prayer Intentions for MAY 2017
Christians in Africa. That Christians in Africa, in imitation of the Merciful Jesus, may give prophetic witness to reconciliation, justice, and peace.
Large 14 Foot Crack in Headworks? Cracking Radial Gate Steel tendons? Threat to Spillway yet no Repairs in 2017? Watch
A threatening 14 foot crack growing in a massive 5 foot thick concrete pier at Radial Trunnion Gate 8 in Oroville's Spillway Headworks? DWR ... continue reading
A once beautiful uninhabited island, a sanctuary to multiple endangered species, is now revealed to be the most polluted place on Earth ... continue reading
Mysteries to the clues of Oroville Dam's leakage revealed in historical dam images? Does DWR/DSOD already know that there is a leak ... continue reading
With all the attention paid to global warming these days, what would happen if our climate disaster came from the other direction --in the ... continue reading
"A very solid scientific consensus indicates that we are presently witnessing a disturbing warming of the climatic system," warns Pope ... continue reading
by Catholic Online
- Catholic Hostages: Filipino Cardinal prays for Islamic militants to ...
- 26 Coptic Christians BRUTALLY MURDERED on bus to St. Samuel Monastery ...
- St. Augustine of Canterbury: Saint of the Day for Saturday, May 27, 2017
- Daily Readings for Saturday, May 27, 2017
- 26 Coptic Christians dead after heinous attack HD Video
- A Big Thank You from JESUS IS - The Series HD Video
- First US female genital mutilation case tries to use Religious ...
- Day 5 - Novena to the Holy Spirit for a New Pentecost for the Church HD
- Day 4 - Novena to the Holy Spirit for a New Pentecost for the Church HD
- Day 3 - Novena to the Holy Spirit for a New Pentecost for the Church HD
- Daily Reading for Wednesday, May 31st, 2017 HD
Copyright 2017 Catholic Online. All materials contained on this site, whether written, audible or visual are the exclusive property of Catholic Online and are protected under U.S. and International copyright laws, © Copyright 2017 Catholic Online. Any unauthorized use, without prior written consent of Catholic Online is strictly forbidden and prohibited.