These unusual ideas included a deep pit under the ... which almost completely fill the island's interior. These trees are dark green, but in such a high concentration, they look much darker from low ...

Fossil evidence reveals that palm trees once thrived in the Canadian Arctic, challenging everything we know about Earth's ...

students will watch seven videos that introduce the missions and give context for how the theme of each mission helps us understand how evolution has shaped life on Earth. Deep Tree: Students ...