Strange sponges found in 890 MILLION-year-old reefs in Canada are believed to be Earth's...
• https://www.dailymail.co, By IAN RANDALLStrange sponges found in 890 MILLION-year-old reefs in Canada are believed to be Earth's earliest-known animals
Strange sponges found in 890 MILLION-year-old reefs in Canada are believed to be Earth's earliest-known animals