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biolojical.bsky.social
Biolojical
@biolojical.bsky.social
25 followers 2 following 240 posts
Sharing the science of biology through emojis. Managed by @jacobphd.bsky.social

https://adaptivediversity.wordpress.com/wp-content/uploads/2020/01/emoji_guide_to_human_genetic_diversity.pdf
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biolojical.bsky.social
Organisms interact (ecology), affecting fitness (evolution).

Fitness⬆️for both:
😍+😘→🤰
🌸+🐝→🍒
🥭+🐘→💩

Fitness⬇️for one,⬆️for the other:
🦓+🦁→🥩
🌳+🦫→🪵
😀+🦠→🤮

Fitness⬇️for both:
😺+🐝→😿
👨‍🍳+🍄→☠️
🦤+🐷→🚫

Fitness❓
😀+🧅→🥲
😀+🌼→🤧
😍+🙄→💔
December 9, 2025 at 11:03 PM
biolojical.bsky.social
# species per taxonomic order (1🐦=18 species)
🐧
🦆🦆🦆🦆🦆🦆🦆🦆🦆🦆
🦉🦉🦉🦉🦉🦉🦉🦉🦉🦉🦉🦉
🦅🦅🦅🦅🦅🦅🦅🦅🦅🦅🦅🦅🦅🦅🦅
🐓🐓🐓🐓🐓🐓🐓🐓🐓🐓🐓🐓🐓🐓🐓🐓
🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️
🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜🦜
🦩➗3
December 9, 2025 at 11:02 PM
biolojical.bsky.social
Genome completely stretched out would be:

Taller than organism
🧅🐁🦇🦆🐙

About the same size as the organism
🐡🦢🧍🌲🐘

Shorter than the organism
🌳🦒🐋🦕🍄
December 9, 2025 at 11:02 PM
biolojical.bsky.social
🐟sees🏝️→→🐸
🐻sees❄️→→🐻‍❄️
🐵sees🌜→→👨🏽‍🚀
🌱sees🐝→→🌸
🦛sees🌊→→🐳
🦎sees🕳️→→🐍
🦠sees💊→→☣️
🕊️sees🏝️→→🦤
🦖sees☄️→→💀

Evolution: Reach for your dreams.
December 9, 2025 at 11:02 PM
biolojical.bsky.social
Hairs per cm²:
10¯²-10¯¹🐘
.
.
10¹-10²🐷
10²-10³💇🏽‍♂️🐑🐮
10³-10⁴🦬🐶🐀🐻‍❄️
10⁴-10⁵🐱🐰🦊
10⁵-10⁶🦦
December 9, 2025 at 11:01 PM
biolojical.bsky.social
Flightless birds

🐧=4 living species
🦤=4 recently extinct species

Northern hemisphere:
🐧🦤🦤🦤🦤🦤🦤🦤🦤
Southern hemisphere:
🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧🦤🦤🦤🦤🦤🦤🦤🦤🦤🦤🦤🦤🦤🦤
December 9, 2025 at 11:00 PM
biolojical.bsky.social
Looks like🐍but👂holes? ID=legless lizard
Looks like🦭but visible👂? ID=sea lion
Looks like🐁but pointy🦷? ID=shrew
Looks like🐝but only 2 wings (à la💸)? ID=fly
Looks like🕷️but 6🦵? ID=cricket
Looks like🦋but antennae like🪶? ID=moth
Looks like🪲but🔻on back? ID=true bug
December 9, 2025 at 10:59 PM
biolojical.bsky.social
Testes size as % of total body mass
0.01-0.05😻🦫🐋🦧🦍
0.05-0.10🦡🐘🐂🐎🕺
0.10-0.50🦇🦔🦊🦌🦭🐇
0.50-1.00🐏🐁🐀
1.00-5.00🐬🐹🐿️
December 9, 2025 at 10:59 PM
biolojical.bsky.social
🦉makes🪶not🦷
🦈makes🦷not🦴
🐀makes🦴not🤮
🐵makes🤮not🐚
🐌makes🐚not🪵
🌳makes🪵not🍚
🌾makes🍚not🩸
🐂makes🩸not🥚
🐊makes🥚not🥛
🦇makes🥛not🪶
🦉makes🪶…
December 9, 2025 at 10:58 PM
biolojical.bsky.social
Evolution in the wild caused by humans
🦋+🏭→⚫️🦋
🐟+🎣→🤏🐟
🦬+🏹→🤏🦬
🐘+🔫→🐘-🦷
🐸+🌆→🔊🐸
🐌+🌡️→🟡🐌
🦠+🧪→🦹🦠
🦟+🧪→🦹🦟
🌱+🧪→🦹🌱
🐀+🧪→🦹🐀
December 9, 2025 at 10:57 PM
biolojical.bsky.social
The reason for the season

🌎=🤣

June:
🌞→🤣

December:
🤣←🌞
December 9, 2025 at 10:56 PM
biolojical.bsky.social
Nobel in Physiology or Medicine:
1902🦟→🥵
1907🦠→🥵
1911👁️=📷
1922💪🏽=🔥
1929🐓+🍚=🍗
1930🅰️🅱️🅾️🆎🩸
1932🧠=⚡️
1933🪰+🪰=🪰
1937🌶️=🇨
1945🍞+🍄=🚫🦠
1948🚫🦋🐞🦗
1949🔪🧠
1956💉🫀
1961👂🏽=🥁
1962🧬=🍥🍥
1976🧠≠🍽️
1983🌽=🟫🟪🟧🟨🟥
1990🦴→🦴
2003🧲=📷
2015🌱→🚫🥵
2022🧔🏽🦣→🧬
December 9, 2025 at 10:30 PM
biolojical.bsky.social
Animal taxa that can glide:
🐜🕷️🦑🐟🐸🦎🐍🐿️
Animal taxa that can fly:
🦋🐦🦇
December 9, 2025 at 10:30 PM
biolojical.bsky.social
Mass extinctions, millions of years ago

🐚🐙🪸🦪⭐️🪱
443 mya💀
🪸🦪
🦈🐌🪸🐙🦪🌱🦂
372 mya💀
🦂🦈
🦈🪳🦂🪸🌱🐟🍄🦐
260 mya💀
🐟🪳
🕷️🍄🪲🐟🦐🐭🦈🐸🐛
252 mya💀
🐸🪲
🐟🦗🐭🐸🪸🐢🌲🐸🐜🐠
201 mya💀
🐢🌲
🦎🐢🦕🐔🐊🪰🐌🐦🦋🌺🦖
66 mya💀
🐊🐭
🦥🦇🐊🦜🦣🐀🦤🐠🐻🦥🐂🧔🏾‍♂️
0 mya💀
🐀🧔🏾‍♂️…
December 9, 2025 at 10:29 PM
biolojical.bsky.social
Edible plant families:
Actinidiaceae🥝
Apiaceae🥕
Arecaceae🥥
Bromeliaceae🍍
Ericaceae🫐
Fagaceae🌰
Lauraceae🥑
Musaceae🍌
Oleaceae🫒
Vitaceae🍇
Amaryllidaceae🧄🧅
Asteraceae🥬🌻
Fabaceae🥜🫘
Poaceae🌽🌾
Rutaceae🍊🍋
Cucurbitaceae🥒🎃🍉🍈
Solanaceae🍆🥔🍅🌶️🫑
Rosaceae🍏🍎🍐🍓🍑🍒
December 9, 2025 at 10:29 PM
biolojical.bsky.social
How many neurons?
<10⁴⭐️🧽🪸
10⁴-10⁵🐌🪱
10⁵-10⁶🪰🐜🐝🦞
10⁶-10⁷🦎🐍🦀🐟🐠
10⁷-10⁸🐹🐭🦇🐢🐊🐸
10⁸-10⁹😼🐰🦚🦃🦆🕊️🦜🐙
10⁹-10¹⁰🦁🐻🐶🦊🦝🐵🐷🦉
10¹⁰-10¹¹🧑‍🎓🦍🦧🦒
>10¹¹🐘
December 9, 2025 at 10:29 PM
biolojical.bsky.social
Who has a tapetum lucidum?
👀👀👀👀👀
Choroidal tapetum cellulosum:
🐶🐱🐋🐬🐭
Choroidal tapetum fibrosum:
🐮🐴🐐🐑🦌
Choroidal guanine tapetum:
🦈
Retinal tapetum:
🐟🐠🐊🐨🦇
None:
🧑🦍🐷🐗🐪🦘🦅🐔🦩
December 9, 2025 at 10:28 PM
biolojical.bsky.social
egg/seed sizes (mm)
🦢🐧🦖🦕🥥>100
🐓🦅🦩🐊🥭🥑30-100
🕊️🐦🐢🐍🍑🫒🌰10-30
🦎🐙🥕🌽🌻🍒🍎🍋3-10
🐡🐞🐝🦗🦐🥦🧅🥝🍓1-3
December 9, 2025 at 10:28 PM
biolojical.bsky.social
If consumed, its liver may kill you:
🐡🐻‍❄️🦭
If consumed, your liver may kill you:
🍶🥃🍸
December 9, 2025 at 10:28 PM
biolojical.bsky.social
Who has the Forssman antigen in their🩸?
Yes:
🐟🐢🐓🐎🐏🐕🐈🐹🐁
No:
🐸🕊️🐄🐖🐇🐀🐵🦧🦍
Sometimes:
🚶🏽‍♂️
December 9, 2025 at 10:27 PM
biolojical.bsky.social
Types of trees

Evergreen softwood
🌲white pine
Deciduous softwood
🌲larch
Evergreen softwood but🪵is actually hard
🌲red cedar
Evergreen hardwood
🌳live oak
Deciduous hardwood
🌳maple
Deciduous hardwood but🪵is actually soft
🌳balsa
Imposters (not real trees)
🌴🍌palm & banana
December 9, 2025 at 10:27 PM
biolojical.bsky.social
To make ____ … use ____
🍲🥗🥪…🐧💩
🌼🌷🌹…🪱💩
🧨🎆🎇…🦇💩
🔥🔥🔥…🦬💩
🏝️🏝️🏝️…🐠💩
👢💼🤠…🐕💩
🐇🐇🐇…🐇💩
🌎🌡️📉…🐋💩
December 9, 2025 at 10:26 PM
Reposted by Biolojical
biolojical.bsky.social
Precambrian:
🦠
🦠
🦠
🦠
Paleozoic:
🦠🐚
🦠🐚🌱
🦠🐚🌱🦂
🦠🐚🌱🦂🦈
Mesozoic:
🦠🐚🌱🦂🦈🐊
🦠🐚🌱🦂🦈🐊🐭
🦠🐚🌱🦂🦈🐊🐭🌼
🦠🐚🌱🦂🦈🐊🐭🌼🦆
Cenozoic:
🦠🐚🌱🦂🦈🐊🐭🌼🦆🍒
🦠🐚🌱🦂🦈🐊🐭🌼🦆🍒🐋
🦠🐚🌱🦂🦈🐊🐭🌼🦆🍒🐋🐎
🦠🐚🌱🦂🦈🐊🐭🌼🦆🍒🐋🐎👶🏾
December 8, 2025 at 9:11 PM
biolojical.bsky.social
Never doubt that a new variant in a population can change the world; indeed, it’s the only thing that ever has.
🐴🐴🐴🐴🐴🐴🐴🐴🐴🐴
🐴🐴🐴🐴🐴🐴🐴🐴🐴🐴
🐴🐴🐴🐴🐴🐴🐴🐴🐴🐴
🐴🐴🐴🐴🐴🐴🐴🐴🐴🐴
🐴🐴🐴🐴🐴🐴🐴🐴🐴🐴
🐴🐴🐴🐴🐴🐴🦄🐴🐴🐴
🐴🐴🐴🐴🐴🐴🐴🐴🐴🐴
🐴🐴🐴🐴🐴🐴🐴🐴🐴🐴
December 8, 2025 at 10:21 PM
biolojical.bsky.social
Species:
🦁
Genus:
🦁🐯
Family:
🦁🐯🐱
Order:
🦁🐯🐱🐻
Class:
🦁🐯🐱🐻🐨
Phylum:
🦁🐯🐱🐻🐨🐸
Kingdom:
🦁🐯🐱🐻🐨🐸🦑
Domain:
🦁🐯🐱🐻🐨🐸🦑
🍅🍆🌶️🍠🍑🍌🌲
Kingdom:
🍅🍆🌶️🍠🍑🍌🌲
Phylum:
🍅🍆🌶️🍠🍑🍌
Class:
🍅🍆🌶️🍠🍑
Order:
🍅🍆🌶️🍠
Family:
🍅🍆🌶️
Genus:
🍅🍆
Species:
🍅
December 8, 2025 at 10:20 PM