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Scientists Narrow Search for First Animals with Clues in Clay

Scientists Narrow Search for First Animals with Clues in Clay
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United kingdomUnited statesDerek briggsSanta barbaraChristina woltzSusannah porterRoss andersonCharles darwinLakhanda groupNicholas tosca of the university cambridgeUniversity of oxfordUniversity of californiaCourtesy royal ontario museumHutchinson professorPlanetary sciencesBurgess shale formation

Clues in the clay: Scientists narrow the search for the first animals

Using a particular type of sedimentary rocks as their guide, researchers begin to tackle the question of when animals first appeared on Earth.

United statesUnited kingdomCharles darwinSusannah porterSanta barbaraRoss andersonDerek briggsL tarhan anomalocarisChristina woltzUniversity of californiaLakhanda groupUniversity of oxfordCourtesy royal ontario museumNicholas tosca of the university cambridgeHutchinson professorPlanetary sciences

10 Outlandish Prehistoric Arthropods

Insects, arachnids, crustaceans, and other arthropods have dominated our planet for nearly half a billion years. Over that time, they've come in an

Aquilonifer spinosusJohn meszarosDiania cactiformisGunter bechlySynophalos xynosPeter vrsanskyYongjie wangNobu tamuraDong renConradc labandeiraWalliserops trifurcatusQiang yangJonathan wojcikDerek briggsChungkun shihTamisiocaris borealis

Local News: Looking back at 2022: Construction and renovations bring fresh looks (1/2/23)

LE MARS Several entities made major additions, expansions and makeovers in 2022. In April, the newly renovated Plymouth County District Courtroom was revealed to the public with an open house..

Nick hansonDerek briggsLe marsVande vegteSteve schusterKevin eekhoffKevin vande vegteLe mars police departmentCommunity facilities direct loanSchuster companyAkron westfield community school districtSchuster coInnovation centerLe mars policeSentinel fileNorthwest bank

Don t Use State Tests Punitively, Ed Secretary Cardona Warns

As federal accountability restarts after two years, guidance from the department underscores how complicated that could be.

United statesDepartment of educationDistrict of columbiaMarianne perieAlex marreroDerek briggsMiguel cardonaScott marionBetsy devosUs department of educationAssessment design researchNational assessment of educational progressUniversity of colorado boulder centerEducation miguel cardonaSecretary betsy devosEvery student succeeds

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