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About sperm size results of 9,800

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What your ball size says about you07:10

What your ball size says about you

22
B2
Why Elephants Rarely Get Cancer08:16

Why Elephants Rarely Get Cancer

7285
B1
20 Misconceptions About Sex - mental_floss on YouTube (Ep.212)11:25

20 Misconceptions About Sex - mental_floss on YouTube (Ep.212)

4106
B1
What is Preimplantation Genetic Testing? - PCRM Fertility Clinic04:38

What is Preimplantation Genetic Testing? - PCRM Fertility Clinic

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B2
What Happens When You Take Testosterone?12:13

What Happens When You Take Testosterone?

864
C1
Does Penis Size Matter?02:50

Does Penis Size Matter?

2768
B2
The Most Extreme Sex In The Animal Kingdom03:46

The Most Extreme Sex In The Animal Kingdom

11766
B2
Women Take A High School Sex Ed Quiz15:40

Women Take A High School Sex Ed Quiz

6
B2
The Most Incredible Octopus You’ve Never Heard of: The Blanket Octopus05:14

The Most Incredible Octopus You’ve Never Heard of: The Blanket Octopus

14
B2
True Facts About The Angler Fish02:00

True Facts About The Angler Fish

573
B2
What Happens When You Quit Steroids?05:56

What Happens When You Quit Steroids?

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B2
Myths About Sex Debunked02:04

Myths About Sex Debunked

7509
C1
An Ode to Oden, plus an Unwanted Surprise...13:59

An Ode to Oden, plus an Unwanted Surprise...

19
B1
Are male and female brains different? - BBC REEL03:16

Are male and female brains different? - BBC REEL

41062
A2
The Sperm Struggle is Real03:12

The Sperm Struggle is Real

15026
C1
Pregnancy is Insane13:16

Pregnancy is Insane

6907
B2
BBC News24:17

BBC News

1990
A2
Wearing Tighty-Whities Really Can Lower Your Sperm Count03:07

Wearing Tighty-Whities Really Can Lower Your Sperm Count

9
B2
Are we interrupting the kinky sex lives of fish? | Marah J. Hardt12:23

Are we interrupting the kinky sex lives of fish? | Marah J. Hardt

14
B1
Why the human penis is unusually large compared to other primates05:20

Why the human penis is unusually large compared to other primates

41
B2
11 Largest Creatures Ever Existed on Earth10:01

11 Largest Creatures Ever Existed on Earth

3
B1
10 MYTHICAL CREATURES that Actually EXISTED!05:55

10 MYTHICAL CREATURES that Actually EXISTED!

633
B2
Tank to Table: How Scientists Make Bigger, Tastier Seafood07:19

Tank to Table: How Scientists Make Bigger, Tastier Seafood

5
B2
Why Megalodon (Definitely) Went Extinct11:13

Why Megalodon (Definitely) Went Extinct

11
B1
Fertilization05:43

Fertilization

878
C2
Gynecologist Answers Commonly Searched Pregnancy Questions07:23

Gynecologist Answers Commonly Searched Pregnancy Questions

187
B1
The Male Biological Clock03:14

The Male Biological Clock

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“I Was Born With An Extra Chromosome”04:28

“I Was Born With An Extra Chromosome”

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B1
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5 Things We Still Get Wrong About Human Reproduction

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B2
Pregnancy and Reproduction Explained02:33

Pregnancy and Reproduction Explained

1900
C1
Why Male Birth Control Is So Hard To Make05:09

Why Male Birth Control Is So Hard To Make

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B2
How IVF Works | The Story of Fertility | BBC Earth Science04:02

How IVF Works | The Story of Fertility | BBC Earth Science

43
B2
The Science of 'Plan B' - Emergency Contraception02:47

The Science of 'Plan B' - Emergency Contraception

1054
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Deciphering the Secret Language of Whales02:55

Deciphering the Secret Language of Whales

16685
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The Terrifying True Scale of Megalodon Visualized

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Welcome to the reproductive system

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B2
The Most Terrifying Creatures Of The Deep Sea03:33

The Most Terrifying Creatures Of The Deep Sea

17304
B2
Why am I Having Trouble Getting Pregnant? - In Conversation with Dr. Rodi (CC available)13:04

Why am I Having Trouble Getting Pregnant? - In Conversation with Dr. Rodi (CC available)

511
B1
5 Things Men Should Know About Their Bodies01:46

5 Things Men Should Know About Their Bodies

3616
B2
For These 7 Species, Sex Changes Everything11:48

For These 7 Species, Sex Changes Everything

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B1
What If You Stopped Masturbating?03:41

What If You Stopped Masturbating?

39145
C1
What is Evolution?08:53

What is Evolution?

9952
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Is Masturbation Good For You?03:01

Is Masturbation Good For You?

1872
B2
SCALE07:18

SCALE

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B1
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7 Myths About The Brain You Thought Were True

30458
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Why Does Deep Sea Life Look So Strange?04:28

Why Does Deep Sea Life Look So Strange?

7996
B2
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