Loading...

BLUESKY
PROFILE
STATISTICS
Last update: 2026-01-21

David Shiffman, Ph.D. 🦈

whysharksmatter.bsky.social
I am a marine conservation biologist studying sharks and a science writer. Posts are about science and the environment, science communication, and more! He/him

Reported Followers

117,935
7 days:2,297
14 days:4,965
30 days:9,214

Reported Followers by date

2026-01-20:117,935358

2026-01-19:117,577333

2026-01-18:117,244275

2026-01-17:116,969310

2026-01-16:116,659337

2026-01-15:116,322333

2026-01-14:115,989351

Actual Followers

94,093
7 days:1,696
14 days:2,954
30 days:4,751

Actual Followers by date

2025-11-21:94,093230

2025-11-20:93,863278

2025-11-19:93,585242

2025-11-18:93,343279

2025-11-17:93,064223

2025-11-16:92,841211

2025-11-15:92,630233

Reported Following

1,487
7 days:1
14 days:6
30 days:10

Reported Follows by date

2026-01-20:1,4871

2026-01-19:1,4860

2026-01-18:1,4860

2026-01-17:1,4860

2026-01-16:1,4860

2026-01-15:1,4860

2026-01-14:1,4860

Actual Following

1,475
7 days:2
14 days:6
30 days:11

Actual Follows by date

2026-01-20:1,4751

2026-01-19:1,4740

2026-01-18:1,4740

2026-01-17:1,4740

2026-01-16:1,4740

2026-01-15:1,4740

2026-01-14:1,4741

Blocking others

3,450
7 days:14
14 days:33
30 days:57

Blocks by date

2026-01-20:3,4503

2026-01-19:3,4471

2026-01-18:3,4461

2026-01-17:3,4454

2026-01-16:3,4411

2026-01-15:3,4401

2026-01-14:3,4393

Liking others

302
7 days:2
14 days:4
30 days:7

Likes by date

2026-01-20:3021

2026-01-19:3011

2026-01-18:3000

2026-01-17:3000

2026-01-16:3000

2026-01-15:3000

2026-01-14:3000

Own posts

112,931
7 days:101
14 days:256
30 days:432

Posts by date

2026-01-20:112,93127

2026-01-19:112,90415

2026-01-18:112,8896

2026-01-17:112,8838

2026-01-16:112,8759

2026-01-15:112,86617

2026-01-14:112,84919

Likes earned

7 days:3,248
14 days:8,558
30 days:14,823

Likes by date

2026-01-20:488

2026-01-19:434

2026-01-18:271

2026-01-17:260

2026-01-16:271

2026-01-15:408

2026-01-14:1,116

Reposts earned

7 days:744
14 days:1,533
30 days:2,728

Reposts by date

2026-01-20:101

2026-01-19:61

2026-01-18:23

2026-01-17:69

2026-01-16:50

2026-01-15:100

2026-01-14:340

Top 5 Most Liked Posts (14 days)
1.
The red dot is a baby North Atlantic right whale trying to migrate up the east coast of the United states. The blue streaks are fast moving shipping vessels entering and leaving New York City harbor. One collision and the whale is dead. We need *mandatory* speed limits for these vessels! 🧪🦑🌍
629
2.
I have replied all requesting that everyone stop replying all, surely this will fix the problem
244
3.
This is your regularly-scheduled reminder, for no particular reason, that law enforcement is absolutely not the most dangerous profession in the United States. Fishing and logging are.
178
4.
Some people are responding to this with "it's not a problem that there's tons of fake images everywhere because I personally know they're not real," and I would invite those people to take a look at the state of the world.
163
5.
If you are not an expert, and you find that your personal opinion differs from expert consensus and the overwhelming weight of evidence: Consider that "the experts who study this know more about it than I do" is a more likely explanation than "I alone discovered what all the experts missed"
145
Top 5 Most Reposted Posts (14 days)
1.
The red dot is a baby North Atlantic right whale trying to migrate up the east coast of the United states. The blue streaks are fast moving shipping vessels entering and leaving New York City harbor. One collision and the whale is dead. We need *mandatory* speed limits for these vessels! 🧪🦑🌍
277
2.
Is your New Years resolution to learn more about sharks? (Just kidding, I assume that's everyone's New Years resolution!) Good news! We are offering my online take-at-your-own-pace "Biology and Ecology of Sharks and Their Relatives" course again, starting in February! 🦑🧪🌍🦈
45
3.
Some people are responding to this with "it's not a problem that there's tons of fake images everywhere because I personally know they're not real," and I would invite those people to take a look at the state of the world.
40
4.
NASA won’t bring Mars samples back to Earth: this is the science that will be lost www.nature.com/articles/d41... 🧪
40
5.
300,000 Wondrous Nature Illustrations Put Online by The Biodiversity Heritage Library | Open Culture
39