إنشاء حساب
الرئيسية
الكورسات
علم الأحياء - Biology
استكشاف أعماق المحيطات: الحياة البحرية، الاكتشافات المدهشة، وحماية المحيطات
How do oysters make pearls? - Rob Ulrich

How do oysters make pearls? - Rob Ulrich

استكشاف أعماق المحيطات: الحياة البحرية، الاكتشافات المدهشة، وحماية المحيطات

الدرس السابق الدرس التالي

محتوى الكورس

جميع الدروس
33 درس
05:13 How squids outsmart their predators - Carly Anne York
05:15 How do fish make electricity? - Eleanor Nelsen
04:28 Will the ocean ever run out of fish? - Ayana Elizabeth Johnson and Jennifer Jacquet
05:25 Why did Megalodon go extinct? - Jack Cooper and Catalina Pimiento
05:23 How do oysters make pearls? - Rob Ulrich
05:26 Jellyfish predate dinosaurs. How have they survived so long? - David Gruber
04:57 These squids can fly... no, really - Robert Siddall
05:13 Why do whales sing? - Stephanie Sardelis
04:36 Why are sharks so awesome? - Tierney Thys
04:26 The survival of the sea turtle
05:35 The one thing stopping jellyfish from taking over - Mariela Pajuelo & Javier Antonio Quinones
04:31 Real life sunken cities - Peter Campbell
05:03 The otherworldly creatures in the ocean's deepest depths - Lidia Lins
03:59 The secret lives of baby fish - Amy McDermott
04:57 What happens when you fall into piranha-infested waters? - Antonio Machado-Allison
05:25 How big is the ocean? - Scott Gass
05:02 Meet the bluefin tuna, the toughest fish in the sea - Grantly Galland and Raiana McKinney
04:55 The nurdles' quest for ocean domination - Kim Preshoff
05:20 Making waves: The power of concentration gradients - Sasha Wright
05:21 Why are blue whales so enormous? - Asha de Vos
03:15 Conserving our spectacular, vulnerable coral reefs - Joshua Drew
06:02 The Secret Life of Plankton
04:37 The lovable (and lethal) sea lion - Claire Simeone
04:43 Could you survive the real Twilight Zone? - Philip Renaud and Kenneth Kostel
05:39 The sharks that hunt in forests - Luka Seamus Wright
05:19 What you can do with an extra jaw - Darien Satterfield
06:38 The surprising (and invisible) signatures of sea creatures - Kakani Katija
04:47 Why are scientists obsessed with the Black Sea? - Helen Farr and Jon Adams
05:06 Hagfish: The world's slimiest creatures - Noah R. Bressman and Douglas Fudge
05:36 How does whale communication work? - David Gruber and Shane Gero
05:01 How much would it cost to buy the ocean? - Astrid J. Hsu
05:37 Is this the most valuable thing in the ocean? - David Biello
05:35 Why did it take so long to find giant squids? - Anna Rothschild