When did animals leave their first footprint on Earth?

When did animals leave their first footprint on Earth?

Also, they are organised in repeated groups, as expected if the animal had multiple paired appendages'.

The fossil tracks offer "some of the earliest known evidence for animal appendages and extend the earliest trace fossil record of animals with appendages from the early Cambrian (485 million to 541 million years ago) to the late Ediacaran Period".

The trackways' characteristics indicate that a bilaterian animal - that is, a creature with bilateral symmetry that has a head at one end, a back end at the other, and a symmetrical right and left side - made the tracks.

The trackways were found in the Yangtze Gorges area of South China, and date to the Ediacaran Period 541 million to 635 million years ago.

"This is considered the earliest animal fossil footprint record", said the report in the USA journal, Science Advances.

"Unless the animal died and [was] preserved next to its footprints, it is hard to say with confidence who made the footprints".

They were discovered by researchers from the Nanjing Institute of Geology and Palaeontology from the Chinese Academy of Sciences and Virginia Tech in the United States.

Jake Ball called into England ODI squad following Chris Woakes injury
England is scheduled to play one ODI versus Scotland followed by a five-match ODI affair and one T20I against Australia . The duo have begun their rehabilitation programmes and will be hoping to feature in the latter stages of the series.

Kwabena Yeboah Appointed Ghana FA Boss
Ghana president Nana Akufo-Addo made the decision to dissolve the nation's football association amid fraud and corruption claims. Meanwhile, government has to dissolved the current FA and has promised to ensure there is sanity in football in Ghana.

Alex Ovechkin has inappropriate but awesome reaction to winning Cup
The ice may have been a factor - temperatures in Las Vegas hit 97 degrees, and the buidling was warmer than usual at faceoff. Capitals fans converged Tuesday at Bar Louie in Rockville for Game 4 and saw their team beat the Vegas Golden Knights , 6-2.

This is a group of animals characterised by having paired appendages - in this case, perhaps, paired legs. They hoped that the sunlight would reveal subtle marks left by ancient organisms on the Shibantan trackways.

An global research team discovered the fossil tracks in China dating back to the Ediacaran Period, just before the Cambrian Explosion when life on Earth increased rapidly. Take that, rest of the pre-Cambrian life forms!

Professor Shuhai Xiao, senior author of the study and geobiologist at Virginia Tech University, said their findings allow them to understand what species were first to evolve with legs.

As Xiao explains, knowing when the first legged animal appeared on Earth is a crucial detail, considering that the movement of sediments triggered by that first walking creature as it trotted over our planet's surface could have had a major impact on the Earth's geochemical cycles and climate.

While the researchers are unable to identify the animal behind the footprints, there are three types of living animals with paired appendages: arthropods such as bumble bees, annelids such as bristle worms, and tetrapods which include humans.

The trackways appear to be connected to burrows, suggesting that the animals may have periodically dug into sediments, perhaps to mine oxygen and food.

The researchers speculate that the same creature left both the tracks and the burrows, suggesting an animal that scurried and tunneled its way across the ground.

Related:

  • Italy Politics: Italy PM calls European Union  immigration policy a failure

    Italy Politics: Italy PM calls European Union immigration policy a failure

    However, Conte made no reference to one of the costliest of the coalition's pledges: abolishing a 2011 pension reform that raised the retirement age.
    Why Princess Charlotte Can't Sit with Her Parents

    Why Princess Charlotte Can't Sit with Her Parents

    George and Charlotte's little brother, one-month-old Prince Louis , will also be expected to follow suit when he's older. Everyone knows the pain of being banished to the kids' table.

    Tiger Woods boat: Yacht to be US Open base in Hamptons

    Woods bought " Privacy " in 2004, and he and his former wife Elin Nordegren spent their wedding night aboard the yacht. Open next week at Shinnecock Hills, and it offered two stacked groups for the morning and afternoon.
  • Jennifer Lawrence Is Reportedly Dating A High End Art Dealer!

    Jennifer Lawrence Is Reportedly Dating A High End Art Dealer!

    In the chat, The Hunger Games star revealed that she hopes to find a suitor whose opinion of her is unaffected by her fame. The Oscar victor has previously been linked to ex-boyfriend Nicholas Hoult and Coldplay singer Chris Martin.
    Kate Middleton to Be an Aunt for the First Time

    Kate Middleton to Be an Aunt for the First Time

    She added to Waitrose Kitchen magazine: "This being my first pregnancy, I had so many questions I felt were still unanswered". It will be the first child for Pippa and her husband, who is the brother of Made In Chelsea star Spencer Matthews.

    'Sons of Anarchy' Actor Alan O'Neill Dies at 47

    Sons of Anarchy fans also went to Twitter to express their condolences. "Rest easy", one fan wrote. "Awful news", another added . An autopsy will be carried out but his death is not being treated as suspicious according to TMZ .
  • James Corden's Shawn Mendes Dating Joke Will Put You In Stitches

    James Corden's Shawn Mendes Dating Joke Will Put You In Stitches

    Shawn Mendes and James Corden found themselves in a cover battle on Wednesday's " Late Late Show " - and it was epic. It's a fun opportunity for us (and for the rest of the audience) to see a different side of that celebrity.
    Toothless finds love in ‘How to Train Your Dragon

    Toothless finds love in ‘How to Train Your Dragon

    Universal Pictures will release How to Train Your Dragon: The Hidden World in US theaters on March 1, 2019. The How to Train Your Dragon franchise is getting a third and final installment.

    USA welcomes Afghan ceasefire offer to Taliban: State Department

    Operations against the "international terrorists" of Islamic State group and Al Qaeda would continue , the Afghan government said. President Ghani offered unconditional peace talks in February under a comprehensive plan to reconcile with the Taliban.
  • Dave Chappelle in first trailer for A Star Is Born remake

    Dave Chappelle in first trailer for A Star Is Born remake

    Lady Gaga , remember her? Cooper does triple duty on this film as it's his directorial debut and he also sings throughout. Here is all you need to know about the remake of A Star is Born including its trailer , cast and plot.

    Bison gores woman in Yellowstone National Park's third animal attack this week

    Rangers recommend park visitors stay at least 25 yards away from animals, and at least 100 yards away from bears and wolves. One person was injured by bison in 2017, and there were five incidents in 2015, according to the National Park Service.
    Durant has 43, Warriors take 3-0 NBA Finals lead over Cavs

    Durant has 43, Warriors take 3-0 NBA Finals lead over Cavs

    "I felt like he was missing shots and struggling to shoot the ball and the confidence he had to pull that one up", Durant said. James is already the career leader in finals 3-pointers with 83, but Stephen Curry is closing fast and only two behind him.

Comments

Latest news

Google: Our AI won't be a weapon
Google released the guidelines soon after it said it would stop working with the military on the controversial Project Maven . Pichai said the latest principles help it take a long-term perspective "even if it means making short-term trade-offs".

Rockets To Be Aggressive Pursuing Paul George
Despite being among the NBA's elite point guards when healthy, injuries have derailed the 33-year-old throughout his career. He was by far their most experienced player in their rotation and averaged 18.9 points per game in his first nine seasons.

US Kids Taught School Shooting Safety Tips In Heartbreaking Nursery Rhyme
With a spate of school shootings this year, teachers, students and parents alike have expressed fear and worry over safety issues in the institutions.

Top seed Halep into third Roland Garros semi-final
Obviously, I grew up in the States where we don't really have red clay. "Then I have two more days until I play the final". So like I said, making the quarter-finals here was a big deal for me.

Kenyan referee Aden Marwa kicked out of World Cup after bribery allegations
His accuser claims the video was taken during the 2018 Africa Nations Champions hosted in Morocco in January and February. Marwa was among the 63 assistant referees set to officiate in Russian Federation .

Trio of astronauts headed to International Space Station
Although the media seems infatuated with private companies like Musk's SpaceX , Americans remain traditionally confident in NASA. At 1.15pm BST (8.15am EDT) on Friday NASA will stream live the Soyuz MS-09 mission module attempting to connect to the ISS.

Real gator watches while boy uses inflatable gator
Oblivious to the danger, Ms Mojica continues her (now ironic) commentary: 'Wrangling gators. "Oh my God. Never would I expect [an alligator] so close to us", Ms Mojica told WFTV . 'They say they are afraid.

Nadal shows champion qualities to bounce back and book semi final place
In the third Del Potro was broken again early on but then reeled off four successive games to get his nose back in front. Canada's Gabriela Dabrowski and Croatia's Mate Pavic lost their mixed doubles final at the French Open on Thursday.

'Avengers 4' New Set Photos May Confirm 'Time Travel' Theories
Avengers 4 will release in the U.S. on May 3, 2019 with both Ant-Man and the Wasp and Captain Marvel premiering before. A highlight from the capsule is the Vans Old Skool featuring components to represent each member of The Avengers .

Coinbase Expands With Deal for Broker-Dealer Keystone Capital
As a broker-dealer, Coinbase will officially be regulated by the SEC as well as FINRA. According to the WSJ , Circle is also now seeking a banking license .

Philippine President Rodrigo Duterte slammed for kissing Filipina before huge audience
He has a common-law wife, Honeylet Avancena, with whom he has a teenage daughter. "I was angry because she was raped", he said. He called Bea Kim on stage after a rambling two-hour speech to thousands of Filipino workers in Seoul .

Middle school students gifted bulletproof shields at graduation
Barbara Rosini, the principal, who was originally contacted Vito about the SafeShields, said: "I worry about our kids". They're about a quarter-inch thick, weigh 20 ounces and also protect against shrapnel and knife attacks.

Woman survives six nights lost in north Queensland bush with no food
When emergency services found her, they were unable to reach her on the ground due to the terrain and airlifted her to safety. Police would like to thank emergency services and members of the public who assisted with the search and rescue of the woman.

Must-See Looks From 2018 CMT Awards Gray Carpet
The show is hosted by the members of Little Big Town: Karen Fairchild, Kimberly Schlapman, Phillip Sweet and Jimi Westbrook. The first American Idol victor stuck around to sing backup as RaeLynn covered the Dixie Chicks' "I Can Love You Better".

Google Doodle honors Mount Holyoke's Virginia Apgar
Instead she became an anesthesiologist, eventually becoming director of Columbia University's department of anesthesia. After some initial resistance, the testing method became widely used throughout the world and is still used today.

Other news