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Researchers Reconstruct the Common Ancestor of Placental Mammals

48,215 views

American Museum of Natural History

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

91%
  • 3:39 / 4:00

Speech Rate:

  • 167 wpm - Fast

Category:

  • Science & Technology

Tags :

Intro:

Video Vocabulary

storing

/stôr/

verb

To put things in a place for later use.

species

/ˈspēsēz/

noun other

group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. Subsections of a genus (of plants, animals).

extinction

/ikˈstiNG(k)SH(ə)n/

noun

process of species being extinct.

because

/bēˈkəz/

conjunction

for reason that.

actually

/ˈak(t)SH(o͞o)əlē/

adverb

Used to add new (often different) information.

evolutionary

/ˌevəˈlo͞oSHəˌnerē/

adjective

Concerning gradual change over time.

official

/əˈfiSHəl/

adjective noun

relating to authority or public body. A person authorized to perform a specific duty.

organisms

/ˈôrɡəˌnizəm/

noun other

individual animal, plant, or single-celled life form. System with many parts that function as a whole.

familiar

/fəˈmilyər/

adjective noun

well known. demon supposedly obeying witch.

hypothetical

/ˌhīpəˈTHedək(ə)l/

adjective noun

Thought up, as an example; not being a real case. hypothetical proposition or statement.

dinosaurs

/ˈdīnəˌsôr/

noun other

fossil reptile of Mesozoic era. Reptile that lived millions of years ago.

mammals

/ˈmaməl/

noun other

warm-blooded vertebrate animal of class that is distinguished by possession of hair or fur, females that secrete milk for nourishment of young. Animals which drink milk from its mother.

morphology

/môrˈfäləjē/

noun

study of forms of things.

reconstruct

/ˌrēkənˈstrəkt/

verb

build or form something again after it has been damaged or destroyed.

definitely

/ˈdef(ə)nətlē/

adverb

Without question; beyond doubt.

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