Ancient pig-like mammal reveals brain evolution beginnings

©Scott Reid/Handout via REUTERS Vocabulary: I will read the words, meanings, and sample sentences. Then, repeat after me. precursor /pri-KUR-ser/ [noun] – something that happened or existed before another thing, especially if it either developed into it or had an influence on it The discovery of primitive bone tools is considered a precursor to more advanced tool-making techniques in human history. roam /rohm/ [verb] – to move about or travel, especially without a clear idea of what you are going to do In a bustling city, pigeons often roam the streets, pecking at scraps and searching for food. pineal gland /PIN-ee-uhl GLAND/ [noun] – a small organ in the brain…
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