Mammoth problem with extinction timeline

Paleontologists say environmental DNA is not always helpful in identifying when animals like mammoths went extinct because genetic material found in sediment could have come from animals that died thousands of years earlier.

Ropsten Shutdown Announcement

As previously announced, the Ropsten network has been deprecated and will be shut down in the coming weeks. Over the past few months, infrastructure providers have gradually stopped supporting the network and validator participation rates have been ste…